The hex color #03c6ac is a light color. The web-safe version is Hex
#00CC99. A complementary color is
#FC3953. The grayscale version is
#7C7C7C. A 20% lighter version of the original color is
#36F9DF, and Hex
#009379 is the 20% darker color. If the color is saturated by 10%, you get
#00CDB1. If the color is desaturated by 10%, the color
#0FBFA7 is obtained.