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KelvidoColor Tools

Color Tools

Convert between HEX, RGB, and HSL, check WCAG contrast compliance, or generate a full color palette from a single base color — with no sign-up and nothing ever uploaded.

Tools

Color Converter

Convert between HEX, RGB, and HSL color formats instantly, in any direction.

Color Local processing

WCAG Contrast Checker

Check the contrast ratio between two colors against WCAG 2.2 AA and AAA thresholds for normal and large text.

Color Local processing

Color Palette Generator

Generate complementary, analogous, triadic, tetradic, and monochromatic color palettes from any base color (hex, RGB, or HSL).

Color Local processing

Image Color Picker

Upload an image and click anywhere on it to pick the exact color at that pixel — as HEX, RGB, and HSL.

Color Local processing

Why these tools run entirely in your browser

Colors and palettes are often part of unreleased design work. Every tool here converts and generates locally in JavaScript — nothing is uploaded, logged, or stored.