The hex color #5b64fc is a dark color. The web-safe version is Hex
#6666FF. A complementary color is
#A49B03. The grayscale version is
#949494. A 20% lighter version of the original color is
#8E97FF, and Hex
#2831C9 is the 20% darker color. If the color is saturated by 10%, you get
#555FFF. If the color is desaturated by 10%, the color
#6169F2 is obtained.