The hex color #635abd is a dark color. The web-safe version is Hex
#6666CC. A complementary color is
#9CA542. The grayscale version is
#7E7E7E. A 20% lighter version of the original color is
#968DF0, and Hex
#30278A is the 20% darker color. If the color is saturated by 10%, you get
#6056C3. If the color is desaturated by 10%, the color
#665EB7 is obtained.