The hex color #13a3d5 is a dark color. The web-safe version is Hex
#0099CC. A complementary color is
#EC5C2A. The grayscale version is
#848484. A 20% lighter version of the original color is
#46D6FF, and Hex
#0070A2 is the 20% darker color. If the color is saturated by 10%, you get
#08A6DD. If the color is desaturated by 10%, the color
#1EA0CD is obtained.