The hex color #7b45cd is a dark color. The web-safe version is Hex
#6633CC. A complementary color is
#84BA32. The grayscale version is
#848484. A 20% lighter version of the original color is
#AE78FF, and Hex
#48129A is the 20% darker color. If the color is saturated by 10%, you get
#7A3FD4. If the color is desaturated by 10%, the color
#7C4BC6 is obtained.