🎨 Free Online Color Tools
Free online color tools — HEX to RGB converter, color picker, contrast checker, palette and shade generators. Live preview, no signup, works in your browser.
13 tools available · 100% free · No signup required
HEX to RGB Converter
HEX to RGB Converter changes hex color codes to RGB and RGBA values instantly online for free. Live preview and copy-ready CSS in your browser.
RGB to HEX Converter
RGB to HEX Converter changes RGB color values to hex codes instantly online for free. Live preview and copy-ready CSS hex in your browser.
Color Picker
Color Picker lets you pick any color and get HEX, RGB, and HSL values instantly online for free. Live preview and copy-ready codes in your browser.
Color Contrast Checker
Color Contrast Checker tests text and background colors against WCAG accessibility ratios online for free. Check AA and AAA compliance in your browser.
HSL Color Converter
HSL Color Converter changes HSL to HEX and RGB and back instantly online for free. Adjust hue, saturation, lightness with live preview in your browser.
Color Shades Generator
Color Shades Generator creates lighter and darker shades of any color online for free. Build tint and shade palettes instantly in your browser.
Random Color Generator
Random Color Generator picks random colors with HEX, RGB, and HSL codes online for free. Generate color inspiration instantly in your browser.
CMYK to RGB Converter
CMYK to RGB Converter changes print CMYK color values to on-screen RGB and hex approximations online for free. Live preview and copy-ready CSS in your browser.
Color Blindness Simulator
Color Blindness Simulator shows how colors and images look with color vision deficiency online for free. Check accessibility side by side in your browser.
Closest Color Name Finder
Closest Color Name Finder matches any HEX, RGB, or HSL color to the nearest CSS named colors online for free. See the top matches by distance in your browser.
Complementary Color Generator
Complementary Color Generator builds complementary, triadic, analogous and other color schemes from any base color online for free. Copy CSS in your browser.
Color Mixer
Color Mixer blends two or more colors at any ratio and shows the result in sRGB, linear RGB and Lab online for free. Live gradient and copy-ready CSS in your browser.
Color Temperature Converter
Color Temperature Converter turns Kelvin light color temperature into RGB and hex, and back, online for free. This is light color, not weather, in your browser.
Color work involves a lot of switching between formats and checking that choices actually work. A brand value arrives as a hex code but your CSS needs RGB or RGBA for opacity; a design looks fine until you test it for contrast and discover the text fails accessibility guidelines; a single accent color needs a full range of shades to build a usable palette. These color tools handle each of those jobs with a live preview, so you can see the result before you commit it. Everything runs in your browser, which keeps unreleased brand work private. UI designers, front-end developers, brand managers, and hobbyists building personal projects all use these tools to move faster between ideation and implementation without context-switching to a heavy design application.
Built for designers and developers
Convert a hex code to RGB and RGBA values ready to paste into a stylesheet, pick a color visually and read every format at once, or check a foreground-and-background pairing against WCAG contrast ratios so your text stays readable for everyone. Each tool focuses on one part of the workflow, so it loads fast and gives a clear, copy-ready answer rather than burying it in options. The palette generator lets you start from a base hue and produce a harmonious set of tints and shades that work together, saving the trial-and-error of adjusting lightness and saturation values manually. Gradient generators output CSS you can paste directly, while the blend tool shows you intermediate steps between two colors for smooth transitions.
Accuracy you can rely on
Color conversions use exact arithmetic, so the RGB value you copy matches the hex code precisely and renders identically in the browser. The contrast checks follow the same ratio thresholds the Web Content Accessibility Guidelines use, giving you a dependable pass or fail rather than a guess. Use them to keep your designs both on-brand and accessible. For teams working across design tools (Figma, Sketch, CSS), having a single reliable conversion reference ensures that colors do not drift between handoff stages. The shade generators use perceptually even steps rather than simple linear interpolation, producing results that look intentional and cohesive in real interfaces.