Coolbluedeep
HSL
225° · 59% · 17%
Midnight Silk
#121f45
Notes
Midnight Silk (#121F45) is a deep 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 (225°, 59%, 17%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. 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
#121f45
RGB
rgb(18, 31, 69)
HSL
hsl(225, 59%, 17%)
Tints & Shades
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Complementary
Split Complementary