Chapter 04 Color as language
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A field guide to making things memorable

The color is the feature

A bright system gives every idea a place to begin.

Give every shade a proper name

Specific labels turn a quick pick into a color people can remember.

Sunny gold

Make the first stroke feel generous

A bright field and rounded controls keep the invitation open from the start.

Spring green

Let bold marks carry the message

Green bands, red buttons, and violet notes make hierarchy visible at a glance.

Crayon red

Leave room for the happy accident

Flexible surfaces welcome one more swatch, sketch, or idea before it ships.

Bright violet
This is the Crayola (1903) design system, applied by Curio — a design-style library for AI agents. Full Crayola (1903) guide → designbycurio.com/learn/crayola-1903