Deep Cobalt Glass

#3f358d

Notes

Deep Cobalt Glass (#3F358D) is a true blue with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (247°, 45%, 38%) 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 yellow. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX

#3f358d

RGB

rgb(63, 53, 141)

HSL

hsl(247, 45%, 38%)