The hex color #2d00d3 is a dark color. The web-safe version is Hex
#3300CC. A complementary color is
#D2FF2C. The grayscale version is
#555555. A 20% lighter version of the original color is
#6033FF, and Hex
#0000A0 is the 20% darker color. If the color is saturated by 10%, you get
#2900E0. If the color is desaturated by 10%, the color
#3109C6 is obtained.