The hex color #81a7ed is a light color. The web-safe version is Hex
#9999FF. A complementary color is
#7E5812. The grayscale version is
#B2B2B2. A 20% lighter version of the original color is
#B4DAFF, and Hex
#4E74BA is the 20% darker color. If the color is saturated by 10%, you get
#7CA6F3. If the color is desaturated by 10%, the color
#86A8E7 is obtained.