The hex color #1d8fe2 is a dark color. The web-safe version is Hex
#3399CC. A complementary color is
#E2701D. The grayscale version is
#858585. A 20% lighter version of the original color is
#50C2FF, and Hex
#005CAF is the 20% darker color. If the color is saturated by 10%, you get
#1390EB. If the color is desaturated by 10%, the color
#278ED9 is obtained.