The hex color #514ddc is a dark color. The web-safe version is Hex
#6666CC. A complementary color is
#AEB223. The grayscale version is
#7E7E7E. A 20% lighter version of the original color is
#8480FF, and Hex
#1E1AA9 is the 20% darker color. If the color is saturated by 10%, you get
#4D48E5. If the color is desaturated by 10%, the color
#5652D3 is obtained.