Color Harmony
Generate complementary, analogous, triadic, tetradic, split-complementary, and monochromatic color schemes from a base hex color.
About Color Harmony
Color Harmony takes one base hex color and builds full color-theory schemes around it: complementary, analogous, triadic, tetradic, split-complementary, and monochromatic. It's a quick way to derive a coordinated palette for a design from a single brand or seed color. Everything is computed in your browser and returned as JSON.
- Category
- create
- Input
- No file input — params only.
- Output
- Outputs: application/json.
- Cost
- Free, runs in your browser
- Memory
- low
Common uses
- Build a website palette around a single brand color using a complementary or triadic scheme
- Generate analogous shades for a calm, cohesive UI from one accent color
- Get a monochromatic ramp of one hue for backgrounds, borders, and hover states
- Explore tetradic and split-complementary options when picking chart or data-viz colors
- Hand a designer a structured set of theory-based color suggestions from a seed hex
- Prototype several scheme directions quickly before committing to a final palette
Frequently asked questions
What do I need to provide?
A single base color as a hex value. The tool generates the related schemes from it; no file upload is involved.
Which schemes does it produce?
Complementary, analogous, triadic, tetradic, split-complementary, and monochromatic, each derived from color-theory relationships on the color wheel.
What format is the output?
JSON listing the schemes and their member colors, so you can drop the values into a stylesheet, design token file, or another tool.
Does anything get sent to a server?
No. The schemes are calculated locally in your browser. The tool is free with no account needed.
How is this different from Color Palette?
Color Palette extracts dominant colors from an existing image. Color Harmony generates new, theory-based schemes from one base color you choose.
Keywords
- color
- harmony
- scheme
- complementary
- triadic
- analogous
- tetradic
- monochromatic
- theory
- palette
- design