The hex color #5a5d6c is a dark color. The web-safe version is Hex
#666666. A complementary color is
#A5A293. The grayscale version is
#616161. A 20% lighter version of the original color is
#8D909F, and Hex
#272A39 is the 20% darker color. If the color is saturated by 10%, you get
#595D6D. If the color is desaturated by 10%, the color
#5B5D6B is obtained.