Cobalt
#02438D · Cobalt
#02438D is Cobalt, a cool blue color. It has an RGB value of 2, 67, 141 and a relative luminance of 0.060, 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
9.59:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
2.19:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #02438D?
#02438D is Cobalt, a cool blue color. In RGB it is 2, 67, 141, and in HSL it is 212°, 97%, 28%.
Is #02438D a light or dark color?
#02438D has a relative luminance of 0.060, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #02438D?
Its complementary color is #8D4C02. For softer combinations, try the analogous or split-complementary harmonies shown above.