Cobalt
#300688 · Cobalt
#300688 is Cobalt, a cool violet color. It has an RGB value of 48, 6, 136 and a relative luminance of 0.025, making it a dark surface.
Temperature
❄ Cool
Hue family
violet
Luminance
0.03
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
13.93:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
1.51:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #300688?
#300688 is Cobalt, a cool violet color. In RGB it is 48, 6, 136, and in HSL it is 259°, 92%, 28%.
Is #300688 a light or dark color?
#300688 has a relative luminance of 0.025, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #300688?
Its complementary color is #5F8906. For softer combinations, try the analogous or split-complementary harmonies shown above.