Chalky Periwinkle Shale

#9799aa

Notes

Chalky Periwinkle Shale (#9799AA) is a true blue 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 (234°, 10%, 63%) 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 amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX

#9799aa

RGB

rgb(151, 153, 170)

HSL

hsl(234, 10%, 63%)