The hex color #88a4a3 is a light color. The web-safe version is Hex
#999999. A complementary color is
#775B5C. The grayscale version is
#9A9A9A. A 20% lighter version of the original color is
#BBD7D6, and Hex
#557170 is the 20% darker color. If the color is saturated by 10%, you get
#86A5A4. If the color is desaturated by 10%, the color
#8AA3A2 is obtained.