The hex color #278aed is a dark color. The web-safe version is Hex
#3399FF. A complementary color is
#D87512. The grayscale version is
#8A8A8A. A 20% lighter version of the original color is
#5ABDFF, and Hex
#0057BA is the 20% darker color. If the color is saturated by 10%, you get
#1D8AF7. If the color is desaturated by 10%, the color
#318AE3 is obtained.