Cobalt
#1F4D9E · Cobalt
#1F4D9E is Cobalt, a cool blue color. It has an RGB value of 31, 77, 158 and a relative luminance of 0.081, making it a dark surface.
Temperature
❄ Cool
Hue family
blue
Luminance
0.08
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
8.04:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
2.61:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #1F4D9E?
#1F4D9E is Cobalt, a cool blue color. In RGB it is 31, 77, 158, and in HSL it is 218°, 67%, 37%.
Is #1F4D9E a light or dark color?
#1F4D9E has a relative luminance of 0.081, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #1F4D9E?
Its complementary color is #9E6F1F. For softer combinations, try the analogous or split-complementary harmonies shown above.