The hex color #598ce9 is a light color. The web-safe version is Hex
#6699FF. A complementary color is
#A67316. The grayscale version is
#9A9A9A. A 20% lighter version of the original color is
#8CBFFF, and Hex
#2659B6 is the 20% darker color. If the color is saturated by 10%, you get
#538BF1. If the color is desaturated by 10%, the color
#608DE1 is obtained.