The hex color #1b82f7 is a dark color. The web-safe version is Hex
#3399FF. A complementary color is
#E47D08. The grayscale version is
#878787. A 20% lighter version of the original color is
#4EB5FF, and Hex
#004FC4 is the 20% darker color. If the color is saturated by 10%, you get
#1082FF. If the color is desaturated by 10%, the color
#2682EC is obtained.