The hex color #2d58d3 is a dark color. The web-safe version is Hex
#3366CC. A complementary color is
#D2A72C. The grayscale version is
#737373. A 20% lighter version of the original color is
#608BFF, and Hex
#0025A0 is the 20% darker color. If the color is saturated by 10%, you get
#2655DD. If the color is desaturated by 10%, the color
#345BC9 is obtained.