The hex color #a9efe0 is a light color. The web-safe version is Hex
#99FFCC. A complementary color is
#56101F. The grayscale version is
#D3D3D3. A 20% lighter version of the original color is
#DCFFFF, and Hex
#76BCAD is the 20% darker color. If the color is saturated by 10%, you get
#A5F2E1. If the color is desaturated by 10%, the color
#ADECDF is obtained.