The hex color #2d30dc is a dark color. The web-safe version is Hex
#3333CC. A complementary color is
#D2CF23. The grayscale version is
#686868. A 20% lighter version of the original color is
#6063FF, and Hex
#0000A9 is the 20% darker color. If the color is saturated by 10%, you get
#272AE8. If the color is desaturated by 10%, the color
#3336D0 is obtained.