The hex color #74c7cd is a light color. The web-safe version is Hex
#66CCCC. A complementary color is
#8B3832. The grayscale version is
#ADADAD. A 20% lighter version of the original color is
#A7FAFF, and Hex
#41949A is the 20% darker color. If the color is saturated by 10%, you get
#6ECAD0. If the color is desaturated by 10%, the color
#7AC4CA is obtained.