Cobalt
#1F549E · Cobalt
#1F549E is Cobalt, a cool blue color. It has an RGB value of 31, 84, 158 and a relative luminance of 0.091, 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
7.45:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
2.82:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Analogous
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #1F549E?
#1F549E is Cobalt, a cool blue color. In RGB it is 31, 84, 158, and in HSL it is 215°, 67%, 37%.
Is #1F549E a light or dark color?
#1F549E has a relative luminance of 0.091, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #1F549E?
Its complementary color is #9E691F. For softer combinations, try the analogous or split-complementary harmonies shown above.