The hex color #434a9c is a dark color. The web-safe version is Hex
#333399. A complementary color is
#BCB563. The grayscale version is
#636363. A 20% lighter version of the original color is
#767DCF, and Hex
#101769 is the 20% darker color. If the color is saturated by 10%, you get
#4048A2. If the color is desaturated by 10%, the color
#464D96 is obtained.