Cool Cobalt Opal

#1b2d74

Notes

Cool Cobalt Opal (#1B2D74) is a deep blue with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (228°, 62%, 28%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. 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

#1b2d74

RGB

rgb(27, 45, 116)

HSL

hsl(228, 62%, 28%)