The hex color #771ebc is a dark color. The web-safe version is Hex
#6633CC. A complementary color is
#88E143. The grayscale version is
#707070. A 20% lighter version of the original color is
#AA51EF, and Hex
#440089 is the 20% darker color. If the color is saturated by 10%, you get
#7816C4. If the color is desaturated by 10%, the color
#7626B4 is obtained.