The hex color #1a87d4 is a dark color. The web-safe version is Hex
#3399CC. A complementary color is
#E5782B. The grayscale version is
#7C7C7C. A 20% lighter version of the original color is
#4DBAFF, and Hex
#0054A1 is the 20% darker color. If the color is saturated by 10%, you get
#1088DD. If the color is desaturated by 10%, the color
#2486CB is obtained.