The hex color #a9c3d7 is a light color. The web-safe version is Hex
#99CCCC. A complementary color is
#563C28. The grayscale version is
#C1C1C1. A 20% lighter version of the original color is
#DCF6FF, and Hex
#7690A4 is the 20% darker color. If the color is saturated by 10%, you get
#A7C3D9. If the color is desaturated by 10%, the color
#ABC3D5 is obtained.