The hex color #738bb5 is a light color. The web-safe version is Hex
#6699CC. A complementary color is
#8C744A. The grayscale version is
#919191. A 20% lighter version of the original color is
#A6BEE8, and Hex
#405882 is the 20% darker color. If the color is saturated by 10%, you get
#708AB9. If the color is desaturated by 10%, the color
#768CB1 is obtained.