The hex color #a091a3 is a light color. The web-safe version is Hex
#999999. A complementary color is
#5F6E5C. The grayscale version is
#9C9C9C. A 20% lighter version of the original color is
#D3C4D6, and Hex
#6D5E70 is the 20% darker color. If the color is saturated by 10%, you get
#A090A4. If the color is desaturated by 10%, the color
#A092A2 is obtained.