Cobalt
#1857A5 · Cobalt
#1857A5 is Cobalt, a cool blue color. It has an RGB value of 24, 87, 165 and a relative luminance of 0.097, making it a dark surface.
Temperature
❄ Cool
Hue family
blue
Luminance
0.10
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
7.13:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
2.95:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Analogous
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #1857A5?
#1857A5 is Cobalt, a cool blue color. In RGB it is 24, 87, 165, and in HSL it is 213°, 75%, 37%.
Is #1857A5 a light or dark color?
#1857A5 has a relative luminance of 0.097, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #1857A5?
Its complementary color is #A56518. For softer combinations, try the analogous or split-complementary harmonies shown above.