Cobalt
#181ECD · Cobalt
#181ECD is Cobalt, a cool blue color. It has an RGB value of 24, 30, 205 and a relative luminance of 0.055, 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
9.97:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
2.11:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #181ECD?
#181ECD is Cobalt, a cool blue color. In RGB it is 24, 30, 205, and in HSL it is 238°, 79%, 45%.
Is #181ECD a light or dark color?
#181ECD has a relative luminance of 0.055, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #181ECD?
Its complementary color is #CDC718. For softer combinations, try the analogous or split-complementary harmonies shown above.