Below are samples of blended tennis lines from several acrylic surface manufacturers. These samples include a variety of lighter and darker blended playing lines on both green and blue court surfaces. A 20% and 25% mix with white is shown for lighter lines and black for darker lines for each sample. The percentage identified in the mix is the amount of white or black acrylic paint by volume that has been mixed with the playing surface color. The USTA believes the decision regarding the installation of lighter or darker lines on a 78 foot tennis court and the contrast should be the facility owner’s preference.