Everything a designer or developer needs — hex conversion, palette generation, accessibility checking, and image color extraction.
Instantly convert between HEX, RGB, HSL, and CMYK with live sliders and copy buttons.
Open converter →Generate complementary, analogous, triadic and more harmonies from any base color.
Open generator →Sample text
Contrast ratio: 12.6:1 — AAA ✓
Test text and background combinations against WCAG 2.1 AA and AAA accessibility standards.
Open checker →Drag and drop any image to instantly extract its 8 dominant colors as hex codes.
Open picker →Every color is available as a free JSON API and CSV dataset — no key, no rate limits, CC BY 4.0. Read the docs →
No sign-up, no paywall, no tracking. These tools run entirely in your browser — your images never leave your device.
convertbase.app — a fast, free set of everyday converters & calculators. No sign-up, no clutter.
Visit convertbase.app