Indigo
#405ACE · Indigo
#405ACE is Indigo, a cool blue color. It has an RGB value of 64, 90, 206 and a relative luminance of 0.129, making it a dark surface.
Temperature
❄ Cool
Hue family
blue
Luminance
0.13
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
5.88:1
AA normal✓
AA large✓
AAA normal✕
On black
The quick fox
3.57:1
AA normal✕
AA large✓
AAA normal✕
Color harmonies
Complementary
Analogous
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #405ACE?
#405ACE is Indigo, a cool blue color. In RGB it is 64, 90, 206, and in HSL it is 229°, 59%, 53%.
Is #405ACE a light or dark color?
#405ACE has a relative luminance of 0.129, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #405ACE?
Its complementary color is #CEB440. For softer combinations, try the analogous or split-complementary harmonies shown above.