The hex color #253fb8 is a dark color. The web-safe version is Hex
#3333CC. A complementary color is
#DAC047. The grayscale version is
#5F5F5F. A 20% lighter version of the original color is
#5872EB, and Hex
#000C85 is the 20% darker color. If the color is saturated by 10%, you get
#1F3CC1. If the color is desaturated by 10%, the color
#2B42AF is obtained.