Cobalt
#2757BE · Cobalt
#2757BE is Cobalt, a cool blue color. It has an RGB value of 39, 87, 190 and a relative luminance of 0.110, making it a dark surface.
Temperature
❄ Cool
Hue family
blue
Luminance
0.11
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
6.58:1
AA normal✓
AA large✓
AAA normal✕
On black
The quick fox
3.19:1
AA normal✕
AA large✓
AAA normal✕
Color harmonies
Complementary
Analogous
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #2757BE?
#2757BE is Cobalt, a cool blue color. In RGB it is 39, 87, 190, and in HSL it is 221°, 66%, 45%.
Is #2757BE a light or dark color?
#2757BE has a relative luminance of 0.110, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #2757BE?
Its complementary color is #BE8F27. For softer combinations, try the analogous or split-complementary harmonies shown above.