The hex color #a7f8c1 is a light color. The web-safe version is Hex
#99FFCC. A complementary color is
#58073E. The grayscale version is
#CBCBCB. A 20% lighter version of the original color is
#DAFFF4, and Hex
#74C58E is the 20% darker color. If the color is saturated by 10%, you get
#A3FDC0. If the color is desaturated by 10%, the color
#ABF3C2 is obtained.