Aqua

Aqua (#00FFFF) is a true cyan with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (180°, 100%, 50%) 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. R=0, G=B=255 — the pure cyan secondary of the RGB cube. HTML 3.2 picked 'Aqua' as the keyword; CSS3 later added 'Cyan' as a synonym, so both names resolve to this exact hex.

Harmonies

Related Colors