Making Grey Tones

I have discovered over the years that you don't have to EVER buy any grey paints. Whatever color you are working with will be greyed with a touch of blue and red. Depending on the blue and red hue that you have, the color will be different shades of grey. This is the best way to grey  your paint, as it would be in nature. You have to remember that however much distance there is between you and the subject, that is how much color will be picked up from the atmosphere that surrounds it. So, always remember to add some of the color that is between you and the subject, no matter what color you are working with. It takes some time to use this technique, so just play with it until you get it! Don't be discouraged....Donna