Today I'm looking at stucco samples. From left to right: Pearl Gray, Navaho White, and Winter Gray. This was taken with (shortlived) morning sun shining on them, which sort of washes out the differences.
And to ensure I remained completely confused, I kept moving them and switching the order - brilliant. From left to right: Pearl Gray, Winter Gray Navaho White.
Here's a closeup taken inside so you can see the texture a little better. From left to right: Pearl Gray, Winter Gray, Navaho White.