The hex color #755bcd is a dark color. The web-safe version is Hex
#6666CC. A complementary color is
#8AA432. The grayscale version is
#8A8A8A. A 20% lighter version of the original color is
#A88EFF, and Hex
#42289A is the 20% darker color. If the color is saturated by 10%, you get
#7356D4. If the color is desaturated by 10%, the color
#7760C6 is obtained.