Cobalt
#191DA4 · Cobalt
#191DA4 is Cobalt, a cool blue color. It has an RGB value of 25, 29, 164 and a relative luminance of 0.038, 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
11.98:1
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 #191DA4?
#191DA4 is Cobalt, a cool blue color. In RGB it is 25, 29, 164, and in HSL it is 238°, 74%, 37%.
Is #191DA4 a light or dark color?
#191DA4 has a relative luminance of 0.038, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #191DA4?
Its complementary color is #A4A019. For softer combinations, try the analogous or split-complementary harmonies shown above.