🔺 Triadic Color Scheme Generator
By ToolNimba Design Team · Updated 2026-06-19
Pick a base color. Click any swatch to copy its hex code.
A triadic color scheme uses three hues spaced evenly around the color wheel, 120 degrees apart, so they form an equilateral triangle. Enter a base color as a hex code or pick it with the swatch, and this tool rotates the hue by 120 and 240 degrees to reveal its two triadic partners. You get all three colors with their hex and HSL values, and you can click any swatch to copy its hex straight to the clipboard.
What is the Triadic Color Generator?
Triadic harmony is one of the classic color relationships from the artist color wheel. You take any starting hue and find the two colors that sit a third of the way around the circle in each direction, at +120 and +240 degrees. Because the three hues are equally spaced, no single color dominates by position, and the set tends to feel lively and balanced at the same time. The familiar red, yellow, blue primary set is itself a triad, which is part of why triadic palettes read as energetic and grounded.
This generator works entirely in the HSL color space (hue, saturation, lightness). It converts your base color to HSL, keeps the saturation and lightness fixed, and only rotates the hue. Holding saturation and lightness constant is what keeps the three colors looking like a deliberate family rather than three random picks: they share the same intensity and brightness, so the eye reads them as a coordinated scheme. The hue wraps around at 360 degrees, so a base hue of 300 plus 120 becomes 60, not 420.
In practice you rarely use all three colors in equal amounts. The usual advice is to choose one hue as the dominant color for large areas, then use the other two as accents for buttons, highlights, links, or illustrations. You can also tune the result afterward by lightening or desaturating two of the hues so one clearly leads. Triadic schemes are popular for playful brands, children's products, infographics, and any design that wants strong contrast without the head-on tension of a single complementary pair.
When to use it
- Building a vibrant brand or logo palette that has contrast but still feels coordinated.
- Choosing accent colors for buttons, charts, or illustrations that need to stand apart from each other.
- Creating energetic UI themes, infographics, or poster designs without the harshness of a single complementary pair.
- Teaching or learning color theory by seeing how an equilateral triangle on the wheel maps to real hex values.
How to use the Triadic Color Generator
- Pick a base color with the color swatch, or type its hex code into the HEX field.
- Read off the three generated swatches: your base color plus the two triadic partners.
- Check the hex and HSL value shown under each swatch.
- Click any swatch to copy its hex code to the clipboard, then paste it into your design tool.
Formula & method
Worked examples
Find the triadic colors for a warm red base #E63946.
- Convert #E63946 to HSL: H 355, S 78, L 56.
- Triad +120: hue = (355 + 120) mod 360 = 115, giving #46E639.
- Triad +240: hue = (355 + 240) mod 360 = 235, giving #3946E6.
- Saturation (78) and lightness (56) stay the same for all three colors.
Result: Base #E63946, plus #46E639 and #3946E6
Find the triadic colors for a teal base #2A9D8F.
- Convert #2A9D8F to HSL: H 173, S 58, L 39.
- Triad +120: hue = (173 + 120) mod 360 = 293, giving #8F2A9D.
- Triad +240: hue = (173 + 240) mod 360 = 53, giving #9D8F2A.
- The teal, purple, and olive share the same saturation and lightness.
Result: Base #2A9D8F, plus #8F2A9D and #9D8F2A
Example triadic schemes (base color plus its two partners at +120 and +240 degrees)
| Base color | Triad +120 | Triad +240 |
|---|---|---|
| #E63946 (red) | #46E639 (green) | #3946E6 (blue) |
| #2A9D8F (teal) | #8F2A9D (purple) | #9D8F2A (olive) |
| #3366FF (blue) | #FF3366 (pink-red) | #66FF33 (lime) |
| #FF0000 (pure red) | #00FF00 (pure green) | #0000FF (pure blue) |
How triadic compares with other common color harmonies
| Scheme | Hue spacing | Number of colors |
|---|---|---|
| Complementary | 180 degrees | 2 |
| Triadic | 120 degrees | 3 |
| Analogous | 15 to 30 degrees | 3 to 5 |
| Tetradic (square) | 90 degrees | 4 |
Common mistakes to avoid
- Using all three colors in equal amounts. A triad reads best with one dominant hue and the other two as accents. Splitting the layout evenly between three strong colors usually looks busy and unbalanced.
- Expecting the partners to be exactly 120 degrees on the RGB wheel. This tool rotates hue in HSL, which matches the standard artist color wheel. Tools that work in other models (such as HSV or a perceptual space) can produce slightly different partner colors for the same base.
- Forgetting to adjust saturation or lightness. Holding S and L fixed keeps the colors a family, but the raw triad can feel too intense for body text or backgrounds. Lighten or desaturate two of the hues to make a usable interface palette.
- Ignoring contrast for text. Triadic colors balance each other on the wheel, but that says nothing about readability. Always check text-on-background contrast against accessibility ratios before shipping.
Glossary
- Triadic scheme
- A color harmony of three hues spaced evenly around the color wheel, 120 degrees apart, forming an equilateral triangle.
- Hue
- The position of a color on the 0 to 360 degree color wheel, such as red near 0, green near 120, and blue near 240.
- HSL
- A color model describing a color by hue, saturation, and lightness, often easier to reason about than raw RGB.
- Saturation
- How vivid or muted a color is, from 0 (gray) to 100 (fully colorful), at a given lightness.
- Color wheel
- A circular arrangement of hues used to describe relationships like complementary, analogous, and triadic.
Frequently asked questions
What is a triadic color scheme?
A triadic color scheme is a set of three colors spaced evenly around the color wheel, 120 degrees apart, so they form an equilateral triangle. The classic red, yellow, and blue primary set is a triad. Triadic schemes feel vibrant and balanced because no one hue dominates by position.
How do you calculate triadic colors?
Convert your base color to HSL, then keep the saturation and lightness the same and rotate the hue by 120 degrees and by 240 degrees. Each rotated hue, converted back to RGB or hex, is one of the triadic partners. The hue wraps at 360, so 300 plus 120 becomes 60.
What is the difference between triadic and complementary colors?
A complementary scheme uses two colors directly opposite each other, 180 degrees apart, for maximum contrast. A triadic scheme uses three colors 120 degrees apart, which keeps strong contrast but spreads it across three hues, giving a livelier and more balanced result than a single pair.
Are triadic color schemes good for web design?
Yes, when used carefully. Pick one hue as the dominant color for large areas and use the other two as accents for buttons, links, or highlights. You may need to lighten or desaturate two of the colors so the palette is not overwhelming, and always check text contrast for accessibility.
Why do the triadic colors share the same saturation and lightness?
This generator only rotates the hue and leaves saturation and lightness untouched. That keeps the three colors at the same intensity and brightness, so the eye reads them as one coordinated family rather than three unrelated picks. You can adjust S and L afterward if you want one color to lead.
Can I copy the colors to use in my design?
Yes. Each swatch shows its hex code and HSL values, and clicking any swatch copies its hex to your clipboard. You can then paste it directly into a design tool, a CSS file, or another color picker.