The hex color #8a2a0a is a dark color. The web-safe version is Hex
#993300. A complementary color is
#75D5F5. The grayscale version is
#3F3F3F. A 20% lighter version of the original color is
#BD5D3D, and Hex
#570000 is the 20% darker color. If the color is saturated by 10%, you get
#912805. If the color is desaturated by 10%, the color
#832C0F is obtained.