Generate a color harmony palette from a base color using complementary, triadic or analogous color theory.
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Complementary colors sit directly opposite each other on the color wheel (180° apart), creating high contrast and visual impact. Triadic colors are evenly spaced (120° apart), offering vibrant but balanced palettes. Analogous colors sit close together (30° apart), producing harmonious, cohesive palettes.
This tool converts your base hex color to HSL (Hue, Saturation, Lightness), rotates the hue value according to your chosen harmony type, then converts each resulting hue back to hex, keeping saturation and lightness consistent across the palette.
Starting from base color #2563EB, which converts to roughly hue 221°, saturation 83%, lightness 53%, the complementary harmony rotates the hue by 180° to about 41°, converting back to approximately #EBAC24, a warm orange, the visual opposite of the original blue. A triadic harmony instead rotates by 120° and 240°, producing two additional colors evenly spaced around the color wheel from the base.
Assuming a color harmony rule guarantees a good-looking palette on its own, complementary and triadic rotations are a mathematical starting point, real designs usually still need adjustments to saturation, lightness, or which color dominates.
Using a very low-saturation or near-white/near-black base color, hue becomes visually meaningless at very low saturation or extreme lightness, so rotating it produces colors that look barely different from each other.
Applying full-saturation generated colors directly as large background areas, harmony-generated hues are useful as accents but can be overwhelming at high saturation across large surfaces, consider reducing saturation or lightness for backgrounds.
Complementary works well for bold accent colors, triadic for vibrant, balanced designs, and analogous for subtle, cohesive color schemes, the right choice depends on the mood you're aiming for.
Yes, each generated color is shown as a standard hex code, ready to use directly in CSS, design tools, or anywhere hex colors are accepted.
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