Deep Cobalt Marble

#2c39a0

Notes

Deep Cobalt Marble (#2C39A0) is a true blue with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (233°, 57%, 40%) 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

#2c39a0

RGB

rgb(44, 57, 160)

HSL

hsl(233, 57%, 40%)