The hex color #1b58e5 is a dark color. The web-safe version is Hex
#3366CC. A complementary color is
#E4A71A. The grayscale version is
#737373. A 20% lighter version of the original color is
#4E8BFF, and Hex
#0025B2 is the 20% darker color. If the color is saturated by 10%, you get
#1255F0. If the color is desaturated by 10%, the color
#245BDA is obtained.