The hex color #e66a5b is a light color. The web-safe version is Hex
#FF6666. A complementary color is
#1995A4. The grayscale version is
#8E8E8E. A 20% lighter version of the original color is
#FF9D8E, and Hex
#B33728 is the 20% darker color. If the color is saturated by 10%, you get
#EF6656. If the color is desaturated by 10%, the color
#DD6E60 is obtained.