Cobalt
#175AA6 · Cobalt
#175AA6 is Cobalt, a cool blue color. It has an RGB value of 23, 90, 166 and a relative luminance of 0.102, making it a dark surface.
Temperature
❄ Cool
Hue family
blue
Luminance
0.10
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
6.89:1
AA normal✓
AA large✓
AAA normal✕
On black
The quick fox
3.05:1
AA normal✕
AA large✓
AAA normal✕
Color harmonies
Complementary
Analogous
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #175AA6?
#175AA6 is Cobalt, a cool blue color. In RGB it is 23, 90, 166, and in HSL it is 212°, 76%, 37%.
Is #175AA6 a light or dark color?
#175AA6 has a relative luminance of 0.102, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #175AA6?
Its complementary color is #A66317. For softer combinations, try the analogous or split-complementary harmonies shown above.