The hex color #a677b4 is a light color. The web-safe version is Hex
#9966CC. A complementary color is
#59884B. The grayscale version is
#9B9B9B. A 20% lighter version of the original color is
#D9AAE7, and Hex
#734481 is the 20% darker color. If the color is saturated by 10%, you get
#A773B7. If the color is desaturated by 10%, the color
#A57BB2 is obtained.