Coolcyan
HSL
183° · 80% · 66%
Quiet Sky Ink
#63e7ee
Notes
Quiet Sky Ink (#63E7EE) 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 (183°, 80%, 66%) 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
#63e7ee
RGB
rgb(99, 231, 238)
HSL
hsl(183, 80%, 66%)