The hex color #1a58d2 is a dark color. The web-safe version is Hex
#3366CC. A complementary color is
#E5A72D. The grayscale version is
#6C6C6C. A 20% lighter version of the original color is
#4D8BFF, and Hex
#00259F is the 20% darker color. If the color is saturated by 10%, you get
#1256DC. If the color is desaturated by 10%, the color
#225AC8 is obtained.