The hex color #3d36cd is a dark color. The web-safe version is Hex
#3333CC. A complementary color is
#C2C932. The grayscale version is
#6B6B6B. A 20% lighter version of the original color is
#7069FF, and Hex
#0A039A is the 20% darker color. If the color is saturated by 10%, you get
#3831D7. If the color is desaturated by 10%, the color
#423BC3 is obtained.