Question 1

Which color formats can I input?

Accepted Answer

HEX (#3b82f6), RGB/RGBA, HSL/HSLA, and English color names (e.g. royalblue) are supported. HSV, CMYK, and LAB are available as output formats.

Question 2

What is the difference between WCAG AA and AAA?

Accepted Answer

AA is the base compliance level: normal text needs a contrast ratio of at least 4.5:1, large text (>= 18pt or 14pt bold) at least 3:1. AAA is enhanced: normal text >= 7:1, large text >= 4.5:1.

Question 3

Which palette mode should I choose?

Accepted Answer

Analogous is the most harmonious and suits backgrounds; complementary offers the strongest contrast, great for CTAs; triadic and tetradic are balanced and lively for brand palettes; split-complementary balances contrast and softness - a safe pick for beginners.

Question 4

Is my color data uploaded to a server?

Accepted Answer

No. Color parsing, palette generation, contrast checking, and gradient building all run locally in your browser via chroma-js.