The hex color #1f33e2 is a dark color. The web-safe version is Hex
#3333CC. A complementary color is
#E0CC1D. The grayscale version is
#676767. A 20% lighter version of the original color is
#5266FF, and Hex
#0000AF is the 20% darker color. If the color is saturated by 10%, you get
#182EEE. If the color is desaturated by 10%, the color
#2638D6 is obtained.