The hex color #3b58e2 is a dark color. The web-safe version is Hex
#3366CC. A complementary color is
#C4A71D. The grayscale version is
#7C7C7C. A 20% lighter version of the original color is
#6E8BFF, and Hex
#0825AF is the 20% darker color. If the color is saturated by 10%, you get
#3454EC. If the color is desaturated by 10%, the color
#425CD8 is obtained.