Indigo
#186DCD · Indigo
#186DCD is Indigo, a cool blue color. It has an RGB value of 24, 109, 205 and a relative luminance of 0.155, making it a dark surface.
Temperature
❄ Cool
Hue family
blue
Luminance
0.16
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
5.11:1
AA normal✓
AA large✓
AAA normal✕
On black
The quick fox
4.11:1
AA normal✕
AA large✓
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #186DCD?
#186DCD is Indigo, a cool blue color. In RGB it is 24, 109, 205, and in HSL it is 212°, 79%, 45%.
Is #186DCD a light or dark color?
#186DCD has a relative luminance of 0.155, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #186DCD?
Its complementary color is #CD7918. For softer combinations, try the analogous or split-complementary harmonies shown above.