The hex color #2197cc is a dark color. The web-safe version is Hex
#3399CC. A complementary color is
#DE6833. The grayscale version is
#818181. A 20% lighter version of the original color is
#54CAFF, and Hex
#006499 is the 20% darker color. If the color is saturated by 10%, you get
#1799D3. If the color is desaturated by 10%, the color
#2B95C5 is obtained.