Plum
#645DB1 · Plum
#645DB1 is Plum, a cool blue color. It has an RGB value of 100, 93, 177 and a relative luminance of 0.137, making it a dark surface.
Temperature
❄ Cool
Hue family
blue
Luminance
0.14
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
5.61:1
AA normal✓
AA large✓
AAA normal✕
On black
The quick fox
3.74:1
AA normal✕
AA large✓
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #645DB1?
#645DB1 is Plum, a cool blue color. In RGB it is 100, 93, 177, and in HSL it is 245°, 35%, 53%.
Is #645DB1 a light or dark color?
#645DB1 has a relative luminance of 0.137, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #645DB1?
Its complementary color is #AAB15D. For softer combinations, try the analogous or split-complementary harmonies shown above.