Coolblue
HSL
243° · 58% · 35%
Dusky Cobalt Echo
#2b258d
Notes
Dusky Cobalt Echo (#2B258D) 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 (243°, 58%, 35%) 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 yellow. For something softer, pull in its analogous neighbors on either side of the wheel.
HEX
#2b258d
RGB
rgb(43, 37, 141)
HSL
hsl(243, 58%, 35%)
Tints & Shades
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Complementary
Split Complementary