Cool Cobalt Petal

#1a1c66

Notes

Cool Cobalt Petal (#1A1C66) is a deep 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 (238°, 59%, 25%) 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 yellow. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX

#1a1c66

RGB

rgb(26, 28, 102)

HSL

hsl(238, 59%, 25%)