Last week I rescued a kitten who appeared to be black. But once I got home I noticed he looks brown in the sunlight. Also, when I brush back his fur, he is completely grey underneath, all over his entire body. His hair is rather fluffy, with some long gray straggly hairs. Have you had experience with this color combination? And what would your guess be as to his hair length? I was told the mother was shorthaired. Thank you so much for your feedback!