So I think I like a color that is on a Dodge Viper. I think its called snake skin green. Its a metallic green. How do I get or find a paint code for it? I do not own any vehicles that color.

Next, is there anywhere I can have a very sample made or someway to look at it?

Reads as if there is more than one version of that color, which is news to me?

Once you know the year of vehicle, and/or the exact color code, you can visit the paint store and have them mix up a small sample bottle.

https://driveviper.com/forums/threads/20156-Paint-code-for-Snakeskin-green

That color - as most colors do - may vary according to the various paint companies' formulas.
Colors can even vary on the cars themselves.
Most any paint suppliers will go by year & code rather than name.
Example 1: the medium blue metallic on '90s Dodge trucks is PBJ.
Example 2: PR4 red as used during the '90s & 2000s has several variances even withing the same paint manufacturer.