The hex color #13a5dd is a dark color. The web-safe version is Hex
#0099CC. A complementary color is
#EC5A22. The grayscale version is
#878787. A 20% lighter version of the original color is
#46D8FF, and Hex
#0072AA is the 20% darker color. If the color is saturated by 10%, you get
#07A8E6. If the color is desaturated by 10%, the color
#1FA2D4 is obtained.