The hex color #e64b51 is a dark color. The web-safe version is Hex
#FF3366. A complementary color is
#19B4AE. The grayscale version is
#818181. A 20% lighter version of the original color is
#FF7E84, and Hex
#B3181E is the 20% darker color. If the color is saturated by 10%, you get
#F0464C. If the color is desaturated by 10%, the color
#DC5056 is obtained.