File:Colortest-00-bars-709.png

Colour bars at 75% saturation, my own work and hereby released as CC0. The colours are chosen for an even gradation from light grey on the left to dark grey on the right when greyscaled using Rec. 709 coefficients. The effect should be similar to that of the well-known, although that is designed for an even gradient with Rec. 601 luma.