Create Color Swatches from Scanned Images

We are looking to create about 40-50 single color swatches which will be displayed on an ecommerce site. The color swatches will need to be generated in three different sizes. The swatches will be derived by looking at scanned in images of powder coated metal pieces. This is for a iron company that paints their railings after installing. They want their customers to be able to see what the available painted finishes look like so these swatches will need to show any "texture" the original scan has. I've attached several scanned in photos of the metal pieces you'll be creating the swatches from. The swatches will then need to be arranged on an 8.5'' x 11'' sheet of paper (portrait) with the color names next to them. This would be a printable version of the the swatches that will be displayed on the website using images. If you happen to be someone that knows HTML and CSS and is familiar with Magento, you could also have the opportunity to create a page and display these swatches neatly.