I am trying to mix flesh tones, but I can not find thalo yellow green in Gouache watercolors. What can I substitute for thalo yellow green?
Gouache is a great medium to work with. The combination of colors you could use would be a mixture of cadmium yellow light with a touch of ultramarine blue to create a similar color to thalo yellow green. Mix with thalo crimson, or other reds in the crimson family, and add white (and any other color you need) to adjust the skin tone.