The hex color #1d82a8 is a dark color. The web-safe version is Hex
#339999. A complementary color is
#E27D57. The grayscale version is
#6D6D6D. A 20% lighter version of the original color is
#50B5DB, and Hex
#004F75 is the 20% darker color. If the color is saturated by 10%, you get
#1584AE. If the color is desaturated by 10%, the color
#2580A2 is obtained.