The hex color #4e66dd is a dark color. The web-safe version is Hex
#6666CC. A complementary color is
#B19922. The grayscale version is
#868686. A 20% lighter version of the original color is
#8199FF, and Hex
#1B33AA is the 20% darker color. If the color is saturated by 10%, you get
#4863E6. If the color is desaturated by 10%, the color
#5469D4 is obtained.