The hex color #4c38a0 is a dark color. The web-safe version is Hex
#333399. A complementary color is
#B3C75F. The grayscale version is
#616161. A 20% lighter version of the original color is
#7F6BD3, and Hex
#19056D is the 20% darker color. If the color is saturated by 10%, you get
#4A34A6. If the color is desaturated by 10%, the color
#4E3C9A is obtained.