The hex color #2a8ff3 is a dark color. The web-safe version is Hex
#3399FF. A complementary color is
#D5700C. The grayscale version is
#8F8F8F. A 20% lighter version of the original color is
#5DC2FF, and Hex
#005CC0 is the 20% darker color. If the color is saturated by 10%, you get
#208FFD. If the color is desaturated by 10%, the color
#348FE9 is obtained.