Crisp Fern Opal

#289a4e

Notes

Crisp Fern Opal (#289A4E) is a true green 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 (140°, 59%, 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX

#289a4e

RGB

rgb(40, 154, 78)

HSL

hsl(140, 59%, 38%)