Cool Chartreuse Opal

#a4e57b

Notes

Cool Chartreuse Opal (#A4E57B) is a true lime 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 (97°, 67%, 69%) 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 indigo. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX

#a4e57b

RGB

rgb(164, 229, 123)

HSL

hsl(97, 67%, 69%)