Cool Fern Flint

#537f5b

Notes

Cool Fern Flint (#537F5B) is a true green 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 (131°, 21%, 41%) places it in the muted 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX

#537f5b

RGB

rgb(83, 127, 91)

HSL

hsl(131, 21%, 41%)