color harmony generator
See the geometry
Every color harmony generator result stays pinned to the same wheel. The markers make 180°, 120°, 90°, and split-complementary spacing visible, so you can explain why the colors belong together.
Interactive browser color wheel
Color Harmony Generator and Interactive Color Wheel
Use the color harmony generator to turn one base color into a complementary, analogous, triadic, split-complementary, or tetradic palette. Drag the wheel, tune HSB values, preview real interface roles, then copy CSS or export a labeled PNG without uploading anything.
Updated July 29, 2026
color harmony generator
What does this color harmony generator do?
This color harmony generator places a base hue on a 360-degree color wheel and calculates related hues with explicit angular offsets. Complementary uses 180°, analogous uses −40° and +40°, triadic uses 120° steps, split-complementary uses 150° and 210°, and tetradic uses 90° steps. The color harmony generator preserves the selected saturation and brightness so the first comparison isolates hue structure. You can then copy every HEX value, export CSS variables, save a PNG, or send the first foreground-background pair to the contrast checker.
color harmony generator
A palette with explainable relationships
The color harmony generator shows the rule, angles, values, and intended roles instead of returning an unexplained strip of swatches.
color harmony generator
Preview useful roles
The color harmony generator maps the result into a toon-style content card with a surface, focal color, accent, and action. It is a quick hierarchy test, not a claim that every generated color is automatically usable.
color harmony generator
Move values into production
Copy one color, the full color harmony generator palette, or CSS custom properties. The labeled PNG records the rule and values for a design review, mood board, or implementation handoff.
Browser-local wheel and palette
Use the color harmony generator
Drag the wheel or edit HEX and HSB. The color harmony generator recalculates every marker, swatch, preview role, and export immediately.
346°
A base with opposing neighbors at 150° and 210°
Generated harmony palette
Base#E8335D
- RGB
- 232, 51, 93
- HSB
- 346°, 78%, 91%
- ΔH
- +0°
Support#33E863
- RGB
- 51, 232, 99
- HSB
- 136°, 78%, 91%
- ΔH
- +150°
Accent#33B8E8
- RGB
- 51, 184, 232
- HSB
- 196°, 78%, 91%
- ΔH
- +210°
Toon palette field test
Check hierarchy before moving these colors into the real artwork or component.
:root {
--harmony-1: #E8335D; /* Base · 346° */
--harmony-2: #33E863; /* Support · 136° */
--harmony-3: #33B8E8; /* Accent · 196° */
}Check this pair
Check this pairThe first swatch is sent as foreground and the last as background.
color harmony generator
How to build a usable harmony
A color harmony generator is most useful when each wheel result leads to a deliberate role, a contrast check, and a small contextual adjustment.
color harmony generator
1. Start with the real base color
Enter the approved brand, character, or interface HEX instead of sampling a compressed screenshot by eye. The color harmony generator keeps that base hue as the first marker and derives every other marker from it.
color harmony generator
2. Pick the relationship before the mood
Use complementary for forceful separation, analogous for close continuity, triadic for three balanced hue families, split-complementary for controlled tension, and tetradic for a broader system. The color harmony generator labels the exact rule while you compare.
color harmony generator
3. Assign roles, then tune values
Keep one color dominant and use the others as support, accent, or counterpoint. After choosing the color harmony generator structure, change saturation and brightness for hierarchy rather than giving every swatch equal visual weight.
color harmony generator
4. Test the implemented pair
Send the likely text-background pair from the color harmony generator to the contrast checker. Review normal, hover, focus, selected, and disabled states, because wheel spacing alone does not establish readable contrast or accessible meaning.
color harmony generator
Five color-wheel harmony rules compared
The color harmony generator uses fixed, reproducible offsets. The table describes the geometry, the initial number of colors, and the design tradeoff before any artistic value adjustment.
| Rule | Hue offsets | Useful starting point | Watch for |
|---|---|---|---|
| Complementary | 0°, 180° | Focal subject versus action or warning accent | Equal saturation can feel loud; choose a dominant side |
| Analogous | −40°, 0°, +40° | Calm scenes, layered surfaces, related character details | Close hues may need stronger brightness separation |
| Triadic | 0°, 120°, 240° | Three roles with broad hue coverage | Reduce one or two colors so the palette has a clear lead |
| Split-complementary | 0°, 150°, 210° | A base with two less direct opposing accents | The two accents can compete if both occupy large areas |
| Tetradic | 0°, 90°, 180°, 270° | Larger systems, teams, charts, and multi-state UI | Four full-strength colors usually need value grouping |
color harmony generator
Six checks before exporting
Use this color harmony generator checklist to turn a visually appealing wheel result into a documented, testable palette.
- Confirm the base HEX comes from the current source of truth and not an old screenshot.
- Choose one harmony rule and record its hue offsets before adjusting saturation or brightness.
- Assign a dominant, supporting, accent, and counterpoint role instead of using equal color areas.
- Measure the real text-background pair and important component boundaries in the contrast checker.
- Add labels, shapes, patterns, or position cues wherever color carries essential meaning.
- Export the color harmony generator CSS or PNG, then test the values in the real component or artwork.
color harmony generator
Method, measurements, and limits
This color harmony generator separates reproducible wheel geometry from accessibility claims. The method uses explicit angles; W3C sources define digital hue syntax and contrast requirements.
- The complementary result is exactly 180° from the base, the triadic result advances by 120°, and the tetradic result advances by 90°. These are direct measurements of the color harmony generator algorithm, reviewed July 29, 2026.
- W3C CSS Color Module Level 4 defines HSL hue as an angle and describes normalization around the color circle. The color harmony generator uses the same 0°–360° convention while calculating HSB colors.
- WCAG 2.2 sets a 4.5:1 minimum contrast ratio for normal text and 3:1 for large text under Success Criterion 1.4.3. A color harmony generator cannot infer compliance from hue spacing, so the tool links to a pairwise checker.
W3C states the normal-text threshold directly:
The visual presentation of text and images of text has a contrast ratio of at least 4.5:1
color harmony generator
Continue the palette workflow
color harmony generator
Color harmony generator questions
What is the best color harmony for a beginner?
Start with analogous when you want a restrained palette or complementary when you need one clear accent. The color harmony generator keeps the base fixed, so switching between both makes the difference visible. Whichever you choose, let one color dominate and test the final foreground-background pair.
Does this color harmony generator use HSL or HSB?
The color harmony generator displays and calculates HSB values because Toon Tone already uses hue, saturation, and brightness. Hue still behaves as a 360-degree angle. HEX values are generated from the selected HSB result for browser and design-tool handoff.
Can a generated palette guarantee accessible contrast?
No. A color harmony generator describes hue relationships, while WCAG contrast depends on relative luminance between a specific foreground and background. Use the included contrast handoff, test the actual font and state, and add non-color cues where meaning depends on color.
Why is monochromatic not one of the modes?
Monochromatic work changes brightness and saturation around one hue rather than placing different hue families around a wheel. This color harmony generator links to the dedicated shades generator, which provides step counts, toon shading, contrast readings, CSS, and PNG export for that job.
Are my colors uploaded or stored?
No. The color harmony generator performs its angle and color conversions in the current browser tab. Copy and PNG actions are local. A shared URL includes the selected base HEX and harmony name in its query string, so only share it when those values are safe to reveal.