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Base44

base44.com
Website preview
The character

sunlit notepad with a lime highlighter

lightaiWixMadeforText
Colors
12
Typefaces
3
Components
13
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Copy a design guide, CSS variables or tokens into your next project.

The design language

Base44 operates in a sunlit, near-monochrome workspace language: a warm off-white canvas (#faf9f7) holds flat white cards with whisper-thin borders and almost no shadow, letting air and generous spacing carry the visual weight. Typography splits between a custom geometric sans for UI chrome and a lighter display face for headlines that breathe at 48-56px with tight tracking — authority through spaciousness, not density. Three signature colors punctuate this quiet system: a lime-green CTA (#ebffb1 fill, #ade900 border) that makes the primary action glow like a fresh highlighter, a vivid orange (#ff631f) reserved for the logo and decorative accents, and a sunset gradient band that breaks the monochrome with warmth. Components feel lightweight and fast — fully-rounded pill buttons, 8px-radius cards, ghost inputs, and minimal elevation. Motion is gentle and spring-like (cubic-bezier(0.22, 1, 0.36, 1)) with everything easing into place rather than snapping.

Inside this designColorsTypographySpacing & shapeGuidelinesComponentsSurfacesCompositionNotes

Color palette

brand

Lime Wash

#ebffb1

Primary CTA fill (Start Building button) — a pale lime that glows against the bone canvas like a fresh highlighter mark

Lime Edge

#ade900

Green accent for outlined action borders, linked labels, and lightweight interactive emphasis. Do not promote it to the primary CTA color

Ember Orange

#ff631f

Logo color, decorative fill accents, secondary action — vivid orange used sparingly to anchor brand identity

Sunset Gradient

#ffae53

Full-bleed section banner — a warm peach-to-coral gradient used as a single atmospheric band between content sections

accent

Sky Wash

#5db3cf

Hero radial gradient — a cool blue-cyan that radiates from the top of the hero section, giving the page an airy open-sky feeling

neutral

Canvas Bone

#faf9f7

Page background, section bands, large surface fills — the warm off-white that defines the entire atmosphere

Card White

#ffffff

Card surfaces, elevated panels, input backgrounds, footer — pure white sitting on the bone canvas

Ink Black

#0f0f0f

Primary text, filled action buttons, icon strokes, nav color — the dominant near-black that carries all type and the filled dark CTA

Graphite

#232529

Secondary text, button text, nav strokes — slightly softer than Ink Black for de-emphasized copy

Hairline

#d1d1d1

Default 1px borders on cards, inputs, dividers — the thinnest structural line

Soft Border

#e6e6e6

Secondary borders, subtle surface backgrounds — softer than Hairline for nested edges

Muted Ink

#a0a0a0

Tertiary text, disabled states, muted icon strokes

Typography

Type scale

Major Second (1.125) · 16px base
display56px · 400 · 1.05

The quick brown fox jumps

heading-lg54px · 400 · 1.2

The quick brown fox jumps

heading48px · 400 · 1.05 · -0.96px tracking

The quick brown fox jumps

heading-sm25px · 400 · 1.2

The quick brown fox jumps

text-2424px · 400 · 1.42

The quick brown fox jumps

subheading20px · 400 · 1.1

The quick brown fox jumps

text-1818px · 400 · 1.3

The quick brown fox jumps

text-1717px · 400 · 1.5

The quick brown fox jumps

Font samples use locally available fonts and fallbacks.

Aa
Primary typeface

WixMadeforText

Weights
400, 500, 700
Sizes
12, 14, 16, 18
Line height
1.25, 1.30, 1.50
Letter spacing
0.025em at 12px, 0.18em uppercase at 12px, normal at 16px
Fallback
Inter

Primary UI sans — body text, buttons, nav, inputs, badges, all chrome. The geometric forms and slightly expanded tracking on small sizes (0.025em at 12px, 0.18em uppercase) give it a friendly, slightly humanist feel that keeps 16px body text comfortable to scan

Aa
Additional typeface

WixMisoRegular

Weights
400
Sizes
20, 24, 48, 54, 56
Line height
1.05, 1.10, 1.20, 1.42
Letter spacing
-0.0200em
Fallback
DM Serif Display or Source Serif Pro at matching weight

Display headline face — used at 48-56px with tight tracking (-0.02em) and very tight line-height (1.05). The single weight at 400 creates a calm, confident headline that doesn't shout — authority through spaciousness. Body sizes (20-24px) share the same character, keeping the type system coherent across scales

Aa
Additional typeface

WixMisoLight

Weights
400 (light cut)
Sizes
17, 25
Line height
1.20, 1.50
Fallback
DM Serif Display Light or a lighter serif like Lora at matching weight

Secondary display — lighter weight version for subheadings (25px) and lead body text (17px), creating tonal contrast against the Regular headlines. Same family guarantees harmony while the weight difference adds hierarchy without size jumps

Spacing & shape

Spacing

Density
comfortable
Base unit
4px
Max width
1200px
Section gap
80px
Card padding
24px
Element gap
16px

Border radius

tags9999px
cards8px
inputs8px
buttons9999px
large-cards30px

Spacing scale

2px
3px
4px
6px
7px
8px
9px
10px
12px
16px
20px
22px
24px
25px
28px
32px
37px
40px
58px
80px
90px
94px
115px
120px
236px
316px

Guidelines

Do

  • Use WixMisoRegular at 48-56px weight 400 with -0.96px tracking for all primary headlines — the single-weight serif creates calm authority without shouting
  • Set all buttons and tags to 9999px (pill) radius — the fully-rounded shape is the system's defining silhouette
  • Use #ebffb1 fill + #ade900 border for the primary CTA, never plain black or blue — the lime glow is the brand's signature action
  • Maintain hairline borders at 1px #d1d1d1 for all structural dividers — never use heavier borders or visible elevation to separate content
  • Keep the page canvas at #faf9f7 (warm bone) and use #ffffff only for cards that need to lift off the canvas — the two-tone surface system is the entire depth model
  • Apply the uppercase eyebrow label treatment (12px, 0.18em tracking, weight 500) to all section labels — it transforms small text into architectural wayfinding
  • Use cubic-bezier(0.22, 1, 0.36, 1) for all entrance animations — the spring-like ease-out matches the warm, unhurried atmosphere

Don’t

  • Don't add drop shadows to cards — the system uses background contrast (white on bone) for hierarchy, not elevation. Reserve the single shadow for the hero prompt card only
  • Don't use #ff631f orange on text or large fills — it's reserved for the logo, decorative accents, and the submit circle inside the input
  • Don't set headline weight above 400 — the system uses weight and tracking for hierarchy, not boldness. Heavier weights would break the calm, spacious feel
  • Don't use saturated blue for links or actions — the system has no traditional 'info blue'; interactive elements are either lime, black, or ghost
  • Don't create dark sections — the page is entirely light-mode. Use the sunset gradient band for atmospheric breaks, never a full dark background
  • Don't use borders heavier than 1px — the hairline aesthetic is the entire structural language. Thicker borders feel heavy and corporate
  • Don't use corner radii below 8px on any surface — the system rounds generously (8px cards, 30px hero card, 9999px pills). Sharp corners clash with the warm, friendly tone

Components

01

Lime CTA Pill

Primary action button

Fully rounded pill (9999px radius), filled #ebffb1 with a 1px #ade900 border, #0f0f0f text, 8px/16px padding, 14-16px WixMadeforText weight 500. The lime-on-lime-edge combo makes the primary action glow — it should be the most colorful element on any page

02

Ink Filled Pill

Secondary dark action

Fully rounded pill (9999px radius), solid #0f0f0f fill with #ffffff text, 0px/21.6px horizontal padding. Used for dark-mode CTAs and 'Get started' variants where the lime pill isn't appropriate

03

Ghost Pill Button

Tertiary action, suggestion chips

Transparent background, #232529 or #0f0f0f text, 1px #d1d1d1 border, 9999px radius, 8px/12px padding. Used for the suggestion chips ('Reporting Dashboard', 'Gaming Platform') beneath the hero input

04

Frosted Nav Pill

Sticky header CTA container

Semi-transparent white background (rgba(255,255,255,0.4)) with backdrop-filter blur(6px), 9999px radius, 1px border at rgba(15,15,15,0.15). The frosted-glass treatment makes the nav feel weightless and floating

05

Text Link Button

Inline nav and footer links

No background, no border, #0f0f0f text at 16px WixMadeforText weight 400. Zero padding — sits inline with nav items. Underline appears on hover only

06

Flat White Card

Standard content card, FAQ items, feature blocks

Pure white #ffffff fill, 8px radius, 1px #d1d1d1 border, no shadow, 24px padding. The absence of shadow keeps the page feeling flat and architectural — hierarchy comes from background contrast (white card on bone canvas), not elevation

07

Soft Shadow Card

Hero input container, elevated prompt card

Near-white #fefcfb fill, 30px radius, soft shadow rgba(0,0,0,0.07) 0px 6px 20px 0px. Used sparingly — only for the central hero input and elements that need to feel lifted and interactive. The 30px radius is much larger than standard cards, marking it as a 'focal' surface

08

Ghost Input

Prompt input, search field

Transparent background inside a Soft Shadow Card container, no border, #0f0f0f placeholder text, 25px top padding, 16px horizontal padding, 28px left padding (for icon). The input feels like writing on a clean sheet rather than filling a form field

09

Orange Submit Circle

Action trigger inside input

Solid #ff631f fill, circular shape (~40px), white arrow icon centered. The vivid orange against the white card creates a single hot-spot of color — the one moment where the brand orange becomes functional

10

Uppercase Eyebrow Label

Section labels, category tags

12px WixMadeforText weight 500, letter-spacing 0.18em, uppercase, #232529 color. Used for labels like 'NOT SURE WHERE TO START? TRY ONE OF THESE:' — the wide tracking transforms small text into architectural labels

11

Accordion FAQ Row

FAQ item

No background, no card — just a 1px #d1d1d1 bottom border, full-width row, question text in WixMadeforText 16px #0f0f0f, plus icon on the right. The flat list with hairline dividers replaces traditional card-based FAQs

12

Top Navigation Bar

Site header

Sticky header, #faf9f7 background, max-width 1200px centered, logo left (orange disc + black wordmark), nav links centered (Product, Use Cases, Resources, Pricing, Enterprise), language toggle + frosted lime CTA right. Height ~56px

13

Sunset Gradient Band

Atmospheric section divider

Full-bleed band using the sunset gradient (transparent → peach #ffe0de → orange #ffae53 → coral #ff7f47 → transparent). Used as a single horizontal band between content sections to break the monochrome without requiring a full dark section

Surfaces & elevation

Level 0

Canvas Bone

#faf9f7

Page background, large section fills — the warm off-white that defines atmosphere

Level 1

Card White

#ffffff

Content cards, FAQ rows, standard elevated surfaces — pure white sitting on bone

Level 2

Soft Cream

#fefcfb

Hero prompt card, focal interactive surfaces — nearly-white cream with the single soft shadow

Level 3

Lime Wash

#ebffb1

Primary CTA fill — the action surface that breaks the monochrome

Elevation is deliberately minimal: most surfaces are flat with hairline borders, and the single soft shadow (rgba(0,0,0,0.07) 0px 6px 20px) is reserved for the hero prompt card only. Depth comes from background contrast (white card on bone canvas) and generous spacing, not from stacked shadows. The system treats elevation as an exception, not a tool.

Layout & imagery

Layout

Max-width 1200px centered container with generous side padding. The hero is a full-bleed light section with a centered headline stack (56px display + 18px subtext) and the prompt input card as the visual anchor, all sitting under a sky-blue radial gradient wash. Below the hero, a full-bleed sunset gradient band breaks the monochrome before returning to the bone canvas for content sections. Section rhythm is consistent: large vertical breathing room (~80px section gaps), centered text stacks alternating with asymmetric two-column layouts. The FAQ section uses a split layout: left-aligned heading column and right-aligned accordion list. Navigation is a sticky top bar with frosted-glass CTA pill, logo left, centered nav, and actions right. The footer is a dark band (contrasting with the light body) at the very bottom.

Imagery

Imagery is minimal and product-focused: the hero features a centered prompt-input card (the product itself as the hero visual), followed by full-bleed gradient bands (sky-blue radial wash, sunset horizontal band) that act as atmospheric dividers rather than decorative images. No photography, no stock illustrations, no product screenshots in the visible sections. Icons are simple line/stroke style in #0f0f0f, with the brand logo using a solid orange disc with black horizontal lines (a stylized database/server icon). The visual density is text-dominant with the product UI (the input card) serving as the primary visual anchor.

Design notes

Agent Guide

primary action: #0f0f0f (filled action) Create a Primary Action Button: #0f0f0f background, #ffffff text, 9999px radius, compact pill padding. Use this filled treatment for the main CTA. ## Quick Color Reference - Text (primary): #0f0f0f - Text (secondary): #232529 - Background (canvas): #faf9f7 - Surface (card): #ffffff - Border (hairline): #d1d1d1 ## Example Component Prompts 1. **Hero prompt card**: White #fefcfb surface, 30px border-radius, soft shadow rgba(0,0,0,0.07) 0px 6px 20px. Inside: transparent ghost input with #0f0f0f placeholder text, 25px top padding, 28px left padding for icon. Orange #ff631f circular submit button (~40px) on the right with white arrow icon. 3. **FAQ accordion row**: Full-width row with 1px #d1d5 bottom border, no background, WixMadeforText 16px #0f0f0f question text left-aligned, plus icon (#0f0f0f stroke) right-aligned. No card wrapping, no padding beyond vertical breathing room. 4. **Display headline**: WixMisoRegular 48px weight 400, #0f0f0f color, line-height 1.05, letter-spacing -0.96px. Centered or left-aligned on #faf9f7 canvas. Never bold — the single weight at 400 is the entire hierarchy tool. 5. **Uppercase eyebrow label**: WixMadeforText 12px weight 500, letter-spacing 0.18em, uppercase, #232529 color. Place above section headings as wayfinding — the wide tracking transforms small text into an architectural label.

Motion Philosophy

Motion is gentle and spring-like, matching the warm unhurried atmosphere. Primary easing: cubic-bezier(0.22, 1, 0.36, 1) for entrances (spring-out), standard ease for color/border transitions (0.15-0.16s). The named animation 'fade-in-up' handles content entrance. Durations are short (0.15-0.3s for micro-interactions, up to 2s for ambient animations). Everything transitions: color, background-color, border-color, fill, stroke, transform, and opacity — but never layout properties. The frosted nav pill uses backdrop-filter blur(6px) to create a floating weightless header.

Similar brands

Linear

Same single-accent approach — Linear uses a purple action color against a dark canvas; Base44 uses lime against a warm bone canvas with the same restraint

Vercel

Both use generous whitespace, hairline borders, and minimal elevation; Vercel's Geist typography and Base44's WixMiso share the same single-weight display approach

Framer

Same fully-rounded pill buttons, warm off-white canvas, and atmospheric gradient bands breaking up monochrome content sections

Notion

Both use a nearly-monochrome palette with a single vivid accent color, ghost inputs that feel like writing on paper, and generous spacing that lets content breathe

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