The hex color #4c47ab is a dark color. The web-safe version is Hex
#333399. A complementary color is
#B3B854. The grayscale version is
#6A6A6A. A 20% lighter version of the original color is
#7F7ADE, and Hex
#191478 is the 20% darker color. If the color is saturated by 10%, you get
#4944B2. If the color is desaturated by 10%, the color
#4F4BA5 is obtained.