The hex color #3c38ef is a dark color. The web-safe version is Hex
#3333FF. A complementary color is
#C3C710. The grayscale version is
#767676. A 20% lighter version of the original color is
#6F6BFF, and Hex
#0905BC is the 20% darker color. If the color is saturated by 10%, you get
#3632FB. If the color is desaturated by 10%, the color
#423EE3 is obtained.