The hex color #0a5ddc is a dark color. The web-safe version is Hex
#0066CC. A complementary color is
#F5A223. The grayscale version is
#6C6C6C. A 20% lighter version of the original color is
#3D90FF, and Hex
#002AA9 is the 20% darker color. If the color is saturated by 10%, you get
#005CE7. If the color is desaturated by 10%, the color
#145ED1 is obtained.