Cobalt
#1203BA · Cobalt
#1203BA is Cobalt, a cool blue color. It has an RGB value of 18, 3, 186 and a relative luminance of 0.037, making it a dark surface.
Temperature
❄ Cool
Hue family
blue
Luminance
0.04
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
12.02:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
1.75:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #1203BA?
#1203BA is Cobalt, a cool blue color. In RGB it is 18, 3, 186, and in HSL it is 245°, 97%, 37%.
Is #1203BA a light or dark color?
#1203BA has a relative luminance of 0.037, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #1203BA?
Its complementary color is #ABBA03. For softer combinations, try the analogous or split-complementary harmonies shown above.