The hex color #a0c9d0 is a light color. The web-safe version is Hex
#99CCCC. A complementary color is
#5F362F. The grayscale version is
#BEBEBE. A 20% lighter version of the original color is
#D3FCFF, and Hex
#6D969D is the 20% darker color. If the color is saturated by 10%, you get
#9DCAD2. If the color is desaturated by 10%, the color
#A3C8CE is obtained.