The hex color #501ad7 is a dark color. The web-safe version is Hex
#6633CC. A complementary color is
#AFE528. The grayscale version is
#6B6B6B. A 20% lighter version of the original color is
#834DFF, and Hex
#1D00A4 is the 20% darker color. If the color is saturated by 10%, you get
#4D12E2. If the color is desaturated by 10%, the color
#5322CC is obtained.