The hex color #1f204c is a dark color. The web-safe version is Hex
#333333. A complementary color is
#E0DFB3. The grayscale version is
#2E2E2E. A 20% lighter version of the original color is
#52537F, and Hex
#000019 is the 20% darker color. If the color is saturated by 10%, you get
#1D1F4F. If the color is desaturated by 10%, the color
#212149 is obtained.