Cobalt
#403E7E · Cobalt
#403E7E is Cobalt, a cool blue color. It has an RGB value of 64, 62, 126 and a relative luminance of 0.060, 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
9.51:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
2.21:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Analogous
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #403E7E?
#403E7E is Cobalt, a cool blue color. In RGB it is 64, 62, 126, and in HSL it is 242°, 34%, 37%.
Is #403E7E a light or dark color?
#403E7E has a relative luminance of 0.060, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #403E7E?
Its complementary color is #7C7E3E. For softer combinations, try the analogous or split-complementary harmonies shown above.