Indigo
#304ADF · Indigo
#304ADF is Indigo, a cool blue color. It has an RGB value of 48, 74, 223 and a relative luminance of 0.109, 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
6.62:1
AA normal✓
AA large✓
AAA normal✕
On black
The quick fox
3.17:1
AA normal✕
AA large✓
AAA normal✕
Color harmonies
Complementary
Analogous
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #304ADF?
#304ADF is Indigo, a cool blue color. In RGB it is 48, 74, 223, and in HSL it is 231°, 73%, 53%.
Is #304ADF a light or dark color?
#304ADF has a relative luminance of 0.109, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #304ADF?
Its complementary color is #DFC430. For softer combinations, try the analogous or split-complementary harmonies shown above.