Color Harmony Generator β complementary, triadic & more
Pick a base color to instantly generate complementary, analogous, triadic, tetradic, split-complementary and monochromatic palettes with copyable HEX codes.
π Runs entirely in your browser. Your input and output are never sent to a server or stored β fully private.
π‘ Click any swatch to copy its HEX.
About this tool
This color harmony generator takes one base color and builds matching palettes from the relationships on the color wheel β complementary, analogous, triadic, tetradic, split-complementary and monochromatic. Pick or type a color and every scheme appears at once, each swatch labeled with a HEX code you can copy in a click. It is a fast way to turn a single brand or accent color into a balanced, ready-to-use palette, and it all runs in your browser.
Frequently asked questions
What is the difference between complementary, analogous and triadic colors?
Complementary colors sit opposite each other on the wheel for strong contrast, analogous colors are neighbors that feel calm and cohesive, and triadic colors are three evenly spaced hues that stay vibrant yet balanced. Split-complementary, tetradic and monochromatic give you softer contrast, richer four-color schemes, and single-hue variations respectively.
Which harmony should I choose for my project?
For a bold, attention-grabbing accent, complementary or split-complementary works well; for a relaxed, unified look, reach for analogous or monochromatic. Triadic and tetradic suit playful designs that need several distinct colors β it is worth generating a few and testing them against your content.
How are the harmony colors calculated?
The tool converts your base color to its hue on the color wheel and rotates that hue by set angles β for example 180 degrees for a complement or three steps of 120 degrees for a triad β while keeping the saturation and lightness consistent. Because the math runs in your browser, the palettes appear instantly and nothing you enter is sent to a server.