The hex color #354c8c is a dark color. The web-safe version is Hex
#333399. A complementary color is
#CAB373. The grayscale version is
#5A5A5A. A 20% lighter version of the original color is
#687FBF, and Hex
#021959 is the 20% darker color. If the color is saturated by 10%, you get
#314B91. If the color is desaturated by 10%, the color
#394D87 is obtained.