The hex color #372a5c is a dark color. The web-safe version is Hex
#333366. A complementary color is
#C8D5A3. The grayscale version is
#3F3F3F. A 20% lighter version of the original color is
#6A5D8F, and Hex
#040029 is the 20% darker color. If the color is saturated by 10%, you get
#36285F. If the color is desaturated by 10%, the color
#382C59 is obtained.