Cobalt
#1C21CA · Cobalt
#1C21CA is Cobalt, a cool blue color. It has an RGB value of 28, 33, 202 and a relative luminance of 0.056, 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
9.91:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
2.12:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #1C21CA?
#1C21CA is Cobalt, a cool blue color. In RGB it is 28, 33, 202, and in HSL it is 238°, 76%, 45%.
Is #1C21CA a light or dark color?
#1C21CA has a relative luminance of 0.056, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #1C21CA?
Its complementary color is #CAC41C. For softer combinations, try the analogous or split-complementary harmonies shown above.