The hex color #203f7c is a dark color. The web-safe version is Hex
#333366. A complementary color is
#DFC083. The grayscale version is
#494949. A 20% lighter version of the original color is
#5372AF, and Hex
#000C49 is the 20% darker color. If the color is saturated by 10%, you get
#1C3E81. If the color is desaturated by 10%, the color
#244077 is obtained.