Deep Aqua Marble

#21b0ca

Notes

Deep Aqua Marble (#21B0CA) is a true cyan with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (189°, 72%, 46%) 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX

#21b0ca

RGB

rgb(33, 176, 202)

HSL

hsl(189, 72%, 46%)