The hex color #a1c1d3 is a light color. The web-safe version is Hex
#99CCCC. A complementary color is
#5E3E2C. The grayscale version is
#BCBCBC. A 20% lighter version of the original color is
#D4F4FF, and Hex
#6E8EA0 is the 20% darker color. If the color is saturated by 10%, you get
#9EC1D5. If the color is desaturated by 10%, the color
#A4C1D1 is obtained.