The hex color #351c4c is a dark color. The web-safe version is Hex
#333333. A complementary color is
#CAE3B3. The grayscale version is
#343434. A 20% lighter version of the original color is
#684F7F, and Hex
#020019 is the 20% darker color. If the color is saturated by 10%, you get
#351A4E. If the color is desaturated by 10%, the color
#351E4A is obtained.