Coolblue
HSL
231° · 70% · 39%
Cool Cobalt Shimmer
#1e33a9
Notes
Cool Cobalt Shimmer (#1E33A9) 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 (231°, 70%, 39%) 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 amber. For something softer, pull in its analogous neighbors on either side of the wheel.
HEX
#1e33a9
RGB
rgb(30, 51, 169)
HSL
hsl(231, 70%, 39%)
Tints & Shades
Click any swatch to exploreHarmonies
Complementary
Split Complementary