Color tool

Color harmony from the Fibonacci sequence

Pick any color. We derive a harmonious palette using the same mathematical ratios found in sunflowers, seashells, and galaxies.

Pick a color

Hex value

Multiplier

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Fibonacci offsets: 5, 8, 13, 21 × multiplier

How it works

The Fibonacci sequence appears everywhere in nature. We use it to find colors that feel naturally connected.

Your base color is converted to Hue, Saturation, and Brightness — a color space that maps naturally to human perception.

The numbers 5, 8, 13, 21 are multiplied by your chosen multiplier to create hue offsets.

Each offset is added to the base hue, wrapping at 360°, to produce four new complementary hues.

Saturation is slightly adjusted on each derived color so the palette feels cohesive rather than mechanical.