Cobalt
#4128BD · Cobalt
#4128BD is Cobalt, a cool violet color. It has an RGB value of 65, 40, 189 and a relative luminance of 0.063, making it a dark surface.
Temperature
❄ Cool
Hue family
violet
Luminance
0.06
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
9.28:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
2.26:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #4128BD?
#4128BD is Cobalt, a cool violet color. In RGB it is 65, 40, 189, and in HSL it is 250°, 65%, 45%.
Is #4128BD a light or dark color?
#4128BD has a relative luminance of 0.063, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #4128BD?
Its complementary color is #A4BD28. For softer combinations, try the analogous or split-complementary harmonies shown above.