Instead of controlling directly the color components red, green and blue with the waves we can use the hue-saturation-brightness color model. In this example the waves of lowest frequency change the brightness. Waves of higher frequency change the hue. Saturation is simply set to full. As before, I use an S-like function to improve the contrast in brightness. Note the great difference to the results of the post “Quasiperiodic symmetry with five-fold rotational symmetry in color“.