The hex color #757cd9 is a light color. The web-safe version is Hex
#6666CC. A complementary color is
#8A8326. The grayscale version is
#999999. A 20% lighter version of the original color is
#A8AFFF, and Hex
#4249A6 is the 20% darker color. If the color is saturated by 10%, you get
#7179DF. If the color is desaturated by 10%, the color
#797FD3 is obtained.