About ColorOverflow
ColorOverflow is a free website for working with color: creating palettes, finding colors that go together, checking that text is readable, and seeing colors in real designs before you use them.
Everything runs in your browser. There's no account to create, and the colors you make are yours to use in personal and commercial projects.
What you can do here
Every tool is free, with no sign-up:
- Palette Generator: Pick a base color and explore harmonies like complementary and triadic.
- Palette from Image: Upload a photo and get its main colors as a palette.
- Shades & Tints: Turn one color into a full scale of shades, tints and tones.
- Color Wheel Explorer: Drag a color around the wheel and see its color harmonies live.
- Color Picker: Pick a color from the wheel or your screen and copy its HEX, RGB and HSL codes.
- Palette Visualizer: See your palette on websites, apps, rooms and outfits.
- Contrast Checker: Check text and background colors against WCAG AA and AAA.
- Color Converter: Convert a color between HEX, RGB, HSL, HSV, CMYK and OKLCH.
Find ideas and learn
- Palette Gallery: ready-made palettes for UI, brands and design trends.
- Inspiration: color combinations shown on rooms, outfits and designs.
- Learn: guides to color theory, harmony, accessibility and building a palette.
Who's behind ColorOverflow
ColorOverflow is an independent project, built and maintained by the ColorOverflow team. We make the tools we want to use ourselves: fast, focused, and honest about what they do.
How we write our guides
Learn guides are written and reviewed by the ColorOverflow Editorial Team. We follow a few rules:
- Start from the basics and explain terms the first time they appear.
- Check every claim, and never invent statistics or studies.
- Present color meanings as associations that change with culture and context, not as fixed rules.
- Calculate contrast ratios the way WCAG 2.2 defines them, with the same code as our Contrast Checker, and cut them to two decimals rather than round them up.
- Show when each guide was last updated, and fix mistakes when readers point them out.
Free, and how it's funded
The tools are free to use. To cover running costs, ColorOverflow may show ads. They're kept out of the tools' working areas, and they never decide what our guides say.
Your privacy
Your saved palettes stay in your browser, and images you use in Palette from Image are analyzed on your device and never uploaded. Read the Privacy Policy for the details.
Found a mistake or have an idea for a tool? Get in touch.