Cobalt
#2808DD · Cobalt
#2808DD is Cobalt, a cool blue color. It has an RGB value of 40, 8, 221 and a relative luminance of 0.058, making it a dark surface.
Temperature
❄ Cool
Hue family
blue
Luminance
0.06
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
9.68:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
2.17:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #2808DD?
#2808DD is Cobalt, a cool blue color. In RGB it is 40, 8, 221, and in HSL it is 249°, 93%, 45%.
Is #2808DD a light or dark color?
#2808DD has a relative luminance of 0.058, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #2808DD?
Its complementary color is #BDDD08. For softer combinations, try the analogous or split-complementary harmonies shown above.