Cobalt
#255798 · Cobalt
#255798 is Cobalt, a cool blue color. It has an RGB value of 37, 87, 152 and a relative luminance of 0.095, making it a dark surface.
Temperature
❄ Cool
Hue family
blue
Luminance
0.09
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
7.25:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
2.90:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #255798?
#255798 is Cobalt, a cool blue color. In RGB it is 37, 87, 152, and in HSL it is 214°, 61%, 37%.
Is #255798 a light or dark color?
#255798 has a relative luminance of 0.095, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #255798?
Its complementary color is #986625. For softer combinations, try the analogous or split-complementary harmonies shown above.