Groucho Paint/Colour Exercise

I'm a bit obsessed with the Marx Brothers at the moment and I'm reading Hello, I Must Be Going: Groucho and His Friends by film writer Charlotte Chandler. I decided to use, as a reference, a great black and white shot of Groucho taken by Michael Childers in 1974, when Groucho was in his eighties. I had to research the clothing to find out what colours it might have been.