The hex color #503cec is a dark color. The web-safe version is Hex
#6633FF. A complementary color is
#AFC313. The grayscale version is
#7D7D7D. A 20% lighter version of the original color is
#836FFF, and Hex
#1D09B9 is the 20% darker color. If the color is saturated by 10%, you get
#4B35F7. If the color is desaturated by 10%, the color
#5543E1 is obtained.