Cerulean color: hex codes, shades and palettes

Palettes built around cerulean. Click any swatch to copy its hex code.

A blue with a green cast, the colour of shallow water over sand. Sits between teal and a true blue and holds its own at large sizes.

Cerulean hex, RGB, HSL and OKLCH

#1A7EA3
HEX
#1A7EA3
RGB
rgb(26, 126, 163)
HSL
hsl(196, 72%, 37%)
OKLCH
oklch(55.6% 0.102 229.1)
On white
4.61:1
On black
4.56:1

Shades of cerulean

Eleven steps from one base color, generated in OKLCH so each step is an equal perceived step rather than an equal numeric one. Click a swatch to copy it.

Contrast and readability

Cerulean on white measures 4.61:1 and on black 4.56:1. WCAG AA asks for 4.5:1 on normal text and 3:1 on large text and UI components, so the higher of those two decides which background it belongs on. In the scale above, 500 is the first to clear 4.5:1 on white, at 5.14:1.

The contrast checker reports every level for a given pair and suggests the nearest passing shade on the same hue. The color picker builds this same scale from any color you paste in.

Related colors:blue, navy, royal blue, cobalt, periwinkle, transparent blue. See every shade on the colors index.