The hex color #2D3DF2 is a dark color. The web-safe version is Hex
#3333FF. A complementary color is
#D2C20D. The grayscale version is
#747474. A 20% lighter version of the original color is
#6070FF, and Hex
#000ABF is the 20% darker color. If the color is saturated by 10%, you get
#2638FF. If the color is desaturated by 10%, the color
#3443E5 is obtained.