Rich Indigo Satin

#641db4

Notes

Rich Indigo Satin (#641DB4) is a true indigo with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (268°, 72%, 41%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX

#641db4

RGB

rgb(100, 29, 180)

HSL

hsl(268, 72%, 41%)