Color reference index
Curated color references by hue family.
Browse a finite set of canonical six-digit HEX pages organized by deterministic OKLCH hue rules and existing registry groups. Every destination below is curated; there are no popularity rankings, filters, or faceted URLs.
Hue families
Reference colors across the deterministic hue ranges.
Hue Codex assigns chromatic colors by OKLCH hue angle and treats colors below the documented chroma threshold as neutral.
Red colors
OKLCH hues from 345° through the wrap to below 20°.
Orange-red colors
OKLCH hues from 20° to below 50°.
Amber colors
OKLCH hues from 50° to below 80°.
Yellow colors
OKLCH hues from 80° to below 105°.
Yellow-green colors
OKLCH hues from 105° to below 140°.
Green colors
OKLCH hues from 140° to below 175°.
Teal colors
OKLCH hues from 175° to below 210°.
Cyan-blue colors
OKLCH hues from 210° to below 245°.
Blue colors
OKLCH hues from 245° to below 275°.
Violet colors
OKLCH hues from 275° to below 305°.
Magenta colors
OKLCH hues from 305° to below 335°.
Rose colors
OKLCH hues from 335° to below 345°.
Neutral colors
Colors below the 0.025 OKLCH chroma threshold.
Curated groups
Existing standardized and registry cohorts.
These bounded selections explain the sources already used by the curated color registry without creating new category routes.
CSS named colors
Standard CSS keywords represented by canonical six-digit HEX values.
Hue Codex reference colors
Interface and reference colors already included in the Hue Codex registry.
Expanded shorthand colors
Canonical six-digit expansions of representative three-digit HEX values.
Fixed sRGB sample
Representative colors from the registry’s fixed 32-step-per-channel sample.