What this tool does
The Color Wheel tool is an interactive color harmony explorer. Pick any base color by clicking on the wheel or entering a hex code, then instantly see the matching palette for four classic harmony types: complementary, triadic, analogous, and split-complementary.
You can also adjust saturation and lightness with sliders to fine-tune the palette. Every swatch shows its hex value and can be clicked to copy it to your clipboard, making it easy to use the colors directly in your design work or code.
Color harmony explained
Color harmony refers to the arrangement of colors that are visually pleasing when used together. It is grounded in color theory, which describes relationships between hues on the color wheel.
The color wheel organizes hues in a circle: red, orange, yellow, green, blue, indigo, and violet, cycling back to red. Colors that sit at specific angular intervals from one another tend to look good together because they either contrast strongly or blend smoothly.
This tool works in HSL (Hue, Saturation, Lightness) color space. Hue is the angle around the color wheel (0-360 degrees), saturation controls color intensity, and lightness controls brightness. Harmony rules are calculated by shifting the hue by fixed angles while keeping saturation and lightness constant.
Types of color harmony
**Complementary:** Uses two colors directly opposite each other on the wheel, 180 degrees apart. This creates maximum contrast and visual tension. Great for call-to-action buttons and bold designs where you want one element to stand out dramatically.
**Triadic:** Uses three colors equally spaced around the wheel, 120 degrees apart. Triadic schemes are vibrant and dynamic while remaining balanced. Popular in children's media, sports branding, and playful interfaces.
**Analogous:** Uses three colors that sit next to each other on the wheel, typically 30 degrees apart. This creates soft, harmonious palettes that feel natural and cohesive. Common in nature photography, wellness brands, and calming interfaces.
**Split-Complementary:** A variation of complementary harmony. Instead of the direct opposite, you use the two colors adjacent to the complement, at 150 and 210 degrees from the base. This gives strong contrast like complementary but with more variety and less tension.
When to use each harmony
- **Complementary** works best when you need high contrast: a primary brand color with a strong accent, a background paired with a headline color, or a button that must stand out. - **Triadic** suits brand identities that need energy and variety without feeling chaotic. It gives you three distinct colors, all equally "loud," which works well for iconography, infographics, and playful UI. - **Analogous** is ideal for backgrounds, gradients, and calm design systems. Because the colors are close together, they blend well and feel soothing. Use this for lifestyle brands, portfolio sites, or any interface where you want a cohesive, gentle feel. - **Split-Complementary** is a safe choice when you want visual interest without the intensity of full complementary contrast. It gives you a dominant color and two supporting accents that feel harmonious rather than jarring.
How to use
1. Click anywhere on the color ring to pick a base hue. The ring shows all 360 hues at full saturation. 2. Optionally type a specific hex color into the Hex Color field to start from a known brand color. 3. Use the Saturation slider to control color intensity, from grey (0%) to vivid (100%). 4. Use the Lightness slider to make the palette lighter or darker. Staying near 50% gives the most saturated result. 5. Select a harmony type using the Complementary, Triadic, Analogous, or Split-Complementary buttons. 6. View the generated palette in the Harmony Palette section. The base color is highlighted with a bold border. 7. Click any color swatch to copy its hex value to your clipboard for use in CSS, Figma, or any design tool.
FAQs
Q: What is the color wheel? A: The color wheel is a circular arrangement of hues that shows the relationships between colors. It helps designers choose colors that work well together based on their angular positions relative to each other.
Q: What does HSL stand for? A: HSL stands for Hue, Saturation, Lightness. Hue is the color angle (0-360 degrees), saturation is the color intensity (0% is grey, 100% is fully vivid), and lightness is the brightness (0% is black, 100% is white, 50% is the pure color).
Q: How are harmony colors calculated? A: Harmony colors are calculated by adding fixed angle offsets to the base hue. Complementary adds 180 degrees. Triadic adds 120 and 240 degrees. Analogous adds and subtracts 30 degrees. Split-complementary adds 150 and 210 degrees.
Q: Can I use these colors directly in CSS? A: Yes. Click any swatch to copy its hex code. You can paste it directly into CSS, Figma, Sketch, Adobe XD, or any design or development tool that accepts hex color values.
Q: Why does clicking the center of the wheel not work? A: The center of the wheel is intentionally left empty. The wheel uses a ring shape so the center area is excluded from hue selection. This keeps the wheel easy to click without accidentally hitting the wrong area.
Q: What is split-complementary harmony? A: Split-complementary uses your base color plus the two colors on either side of its direct complement. Instead of one contrasting color, you get two slightly different contrasting colors, giving more visual variety while still maintaining strong contrast.
Q: How do I find a good neutral to pair with my palette? A: Adjust the saturation slider down to 10-20% and the lightness to 80-90% to create a light neutral version of your hue. This produces a tinted white that coordinates naturally with your palette.
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