The hex color #2e38db is a dark color. The web-safe version is Hex
#3333CC. A complementary color is
#D1C724. The grayscale version is
#6B6B6B. A 20% lighter version of the original color is
#616BFF, and Hex
#0005A8 is the 20% darker color. If the color is saturated by 10%, you get
#2833E6. If the color is desaturated by 10%, the color
#343DD0 is obtained.