Please do not paint on the siding. Get some big poster paper and paint a couple of each color. This way, you can move them around your house, all times of the day, so you know what each color will look like in all types of lighting conditions. Painting on the siding, and the swatch picks up off the background color, and then you may not like the color, once a whole side of house is painted. What looks great on someone elses house, may not look great on yours.

Thanks. I do have sample swatches, but they are smooth, the siding has grain, so it helps to do the siding too. I do move the swatches all around the different sides of the house and I also use a "tube" to look through, so it doesn't clash with the current color. Thanks for the advice! I appreciate it.!

Grizzle Gray is medium shade of green and Kitty Gray is a shade of green-cyan

Thank you so much! I love both colors! Will have to make up my mind soon....

Thank you Debbie! I know! It's a cute name isn't it? It's really a pretty color in person - gray with green in it, and reminds me of a house color one might see on a historical house or a Williamsburg paint color. Thanks for the advice, too, about the panels and such. Unfortunately I didn't figure out to paint on poster board or shingles before I already painted on the siding, but it's fine and I have shown it to my painter. I am not painting any more, as I have narrowed in on Grizzle Gray or Kitty Gray - both lovely colors. For reference here is my house with the old color on it.: