The hex color #2a8df9 is a dark color. The web-safe version is Hex
#3399FF. A complementary color is
#D57206. The grayscale version is
#909090. A 20% lighter version of the original color is
#5DC0FF, and Hex
#005AC6 is the 20% darker color. If the color is saturated by 10%, you get
#208DFF. If the color is desaturated by 10%, the color
#348DEF is obtained.