The hex color #9f90a5 is a light color. The web-safe version is Hex
#999999. A complementary color is
#606F5A. The grayscale version is
#9C9C9C. A 20% lighter version of the original color is
#D2C3D8, and Hex
#6C5D72 is the 20% darker color. If the color is saturated by 10%, you get
#9F8FA6. If the color is desaturated by 10%, the color
#9F91A4 is obtained.