Cobalt
#154DA8 · Cobalt
#154DA8 is Cobalt, a cool blue color. It has an RGB value of 21, 77, 168 and a relative luminance of 0.083, 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
7.90:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
2.66:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Analogous
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #154DA8?
#154DA8 is Cobalt, a cool blue color. In RGB it is 21, 77, 168, and in HSL it is 217°, 78%, 37%.
Is #154DA8 a light or dark color?
#154DA8 has a relative luminance of 0.083, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #154DA8?
Its complementary color is #A87015. For softer combinations, try the analogous or split-complementary harmonies shown above.