5.3 · Color

The 60-30-10 rule.

A color distribution formula. 60% dominant (background), 30% secondary (cards), 10% accent (CTAs only).

What it is

The 60-30-10 rule is a simple color distribution formula borrowed from interior design. 60% of the visual area uses the dominant color (usually a neutral). 30% uses the secondary color (slightly different tone for cards, sections). 10% uses the accent color (your brand color — for CTAs, highlights, icons).

How it works

The dominant 60% sets the overall mood. The secondary 30% creates depth and section differentiation. The accent 10% draws the eye to what matters — your CTA button, important stats, or links. If your accent appears more than 10% of the time, it loses its ability to draw attention.

Dominant (60%)Your background color — neutral, sets the overall mood
Secondary (30%)Card backgrounds, alternate sections, sidebar backgrounds
Accent (10%)Brand color — ONLY for CTAs, highlights, active states, key icons
Tints & shadesLighter/darker versions of one color — creates depth without adding new colors

Live demo

Scroll inside. The sticky legend at the top names the three colors. Notice how rarely the accent blue appears.

Live · scroll
60% #FAFAF7 30% #F0EDE8 10% #2563EB

Made by hand, made to outlast.

Batch 12 is shipping now. 240 numbered jackets, in waxed Lancashire cotton.

◆
Material

10oz waxed cotton from one mill in England.

✦
Hardware

Solid brass, lacquered, lifetime guarantee.

⌘
Make

Cut, sewn, finished by five hands in Brooklyn.

Read the journal →

Essays on slow craft, every other Friday.

Copy this prompt

Prompt · 5.3 60-30-10 Rule
Design a website using the 60-30-10 color rule. Dominant color (60%): #FAFAF7 (warm off-white) for page backgrounds. Secondary color (30%): #F0EDE8 (slightly warmer gray) for cards, alternate sections, and footer. Accent color (10%): #2563EB (electric blue) ONLY for primary CTA buttons, active navigation links, highlighted text, and icons. Text: #111111 for headings, #555555 for body text, #888888 for captions. Never use the electric blue for anything decorative — only for actionable and important elements.

Example sites to study