Show posts by selecting requirements

Im looking for a way to display the posts on a website by selecting specifications.

For example: There are 20 posts, that resemble 20 products for a corporate website.

When you go to the products page, there are a number of bullets on the page,: White, Black, Green, Blue.

Once you select the button white, it will show all the products/posts with a custom field called white. If you tick black, etc etc.

How can this be achieved?

Thanks a lot guys