Vivid Sky Radiant

#66f4f0

Notes

Vivid Sky Radiant (#66F4F0) is a true cyan 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 (178°, 87%, 68%) places it in the highly saturated band at a mid lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. For a confident two-color system, pair it with its complementary red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX

#66f4f0

RGB

rgb(102, 244, 240)

HSL

hsl(178, 87%, 68%)