Rich Aqua Echo

#51a4a0

Notes

Rich Aqua Echo (#51A4A0) is a true cyan with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (177°, 34%, 48%) 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX

#51a4a0

RGB

rgb(81, 164, 160)

HSL

hsl(177, 34%, 48%)