Color7 tools
Tools to define, verify, and convert color. OKLCH 11-stop palettes, conversion across hex/rgb/hsl/oklch/lab/p3 (Tailwind v4 migration included), WCAG contrast, four-vision color-blind simulation, and 87 Korean traditional colors. Aimed at designers and KWCAG audits.
Tools
- N°31Color paletteA tonal scale from one color
Give it a base color; get tonal, contrast, and complementary variations.
- N°32Contrast checkerWCAG AA · AAA · UI components
Measure the ratio between two colors and see every WCAG grade at a glance.
- N°33Color converthex · rgb · oklch · lab · display-p3
See one color in six formats at once — or paste a CSS file to migrate to Tailwind v4 oklch.
- N°34Color blindnessCVD simulator
Compare a palette or image across four vision types (deutan · protan · tritan · achromat) at once.
- N°35Korean colors87 traditional colors · Obangsaek search
Search the National Museum of Modern Art's Korean Traditional Standard Colors by Hangul name; copy or hand off to other color tools.
- N°36Focus ring checkFocus ring 3:1 + live preview
Confirm a keyboard focus ring stays 3:1 against both adjacent colors at once.
- N°37Image palettePhoto → N-color palette
Pull 3–12 dominant colors from a photo, illustration, or mood board.