Cool Twilight Opal

#1a0a24

Notes

Cool Twilight Opal (#1A0A24) is a deep indigo 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 (277°, 57%, 9%) 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX

#1a0a24

RGB

rgb(26, 10, 36)

HSL

hsl(277, 57%, 9%)