The hex color #2d88e3 is a dark color. The web-safe version is Hex
#3399CC. A complementary color is
#D2771C. The grayscale version is
#888888. A 20% lighter version of the original color is
#60BBFF, and Hex
#0055B0 is the 20% darker color. If the color is saturated by 10%, you get
#2488EC. If the color is desaturated by 10%, the color
#3688DA is obtained.