The hex color #4c20bb is a dark color. The web-safe version is Hex
#3333CC. A complementary color is
#B3DF44. The grayscale version is
#626262. A 20% lighter version of the original color is
#7F53EE, and Hex
#190088 is the 20% darker color. If the color is saturated by 10%, you get
#4A19C4. If the color is desaturated by 10%, the color
#4E27B2 is obtained.