Cobalt
#660057 · Cobalt
#660057 is Cobalt, a balanced magenta color. It has an RGB value of 102, 0, 87 and a relative luminance of 0.035, making it a dark surface.
Temperature
◐ Balanced
Hue family
magenta
Luminance
0.04
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
12.33:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
1.70:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #660057?
#660057 is Cobalt, a balanced magenta color. In RGB it is 102, 0, 87, and in HSL it is 309°, 100%, 20%.
Is #660057 a light or dark color?
#660057 has a relative luminance of 0.035, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #660057?
Its complementary color is #00660F. For softer combinations, try the analogous or split-complementary harmonies shown above.