Deep Cobalt Marble

#1c42b5

Notes

Deep Cobalt Marble (#1C42B5) is a true blue with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (225°, 73%, 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 amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX

#1c42b5

RGB

rgb(28, 66, 181)

HSL

hsl(225, 73%, 41%)