Cobalt
#1E3B71 · Cobalt
#1E3B71 is Cobalt, a cool blue color. It has an RGB value of 30, 59, 113 and a relative luminance of 0.046, making it a dark surface.
Temperature
❄ Cool
Hue family
blue
Luminance
0.05
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
10.94:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
1.92:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #1E3B71?
#1E3B71 is Cobalt, a cool blue color. In RGB it is 30, 59, 113, and in HSL it is 219°, 58%, 28%.
Is #1E3B71 a light or dark color?
#1E3B71 has a relative luminance of 0.046, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #1E3B71?
Its complementary color is #71541E. For softer combinations, try the analogous or split-complementary harmonies shown above.