The hex color #1f03e2 is a dark color. The web-safe version is Hex
#3300CC. A complementary color is
#E0FC1D. The grayscale version is
#575757. A 20% lighter version of the original color is
#5236FF, and Hex
#0000AF is the 20% darker color. If the color is saturated by 10%, you get
#1900F0. If the color is desaturated by 10%, the color
#250BD4 is obtained.