The hex color #81a2dd is a light color. The web-safe version is Hex
#9999CC. A complementary color is
#7E5D22. The grayscale version is
#ABABAB. A 20% lighter version of the original color is
#B4D5FF, and Hex
#4E6FAA is the 20% darker color. If the color is saturated by 10%, you get
#7DA1E2. If the color is desaturated by 10%, the color
#85A3D8 is obtained.