The hex color #1689e2 is a dark color. The web-safe version is Hex
#0099CC. A complementary color is
#E9761D. The grayscale version is
#808080. A 20% lighter version of the original color is
#49BCFF, and Hex
#0056AF is the 20% darker color. If the color is saturated by 10%, you get
#0B8AEC. If the color is desaturated by 10%, the color
#2188D8 is obtained.