The hex color #e3735e is a light color. The web-safe version is Hex
#CC6666. A complementary color is
#1C8CA1. The grayscale version is
#919191. A 20% lighter version of the original color is
#FFA691, and Hex
#B0402B is the 20% darker color. If the color is saturated by 10%, you get
#EB7059. If the color is desaturated by 10%, the color
#DB7663 is obtained.