His (the decorator) quotation is for Dulux paints. He has an account with them. It's just that we were looking at The Farrow and Ball paint and wondering why it was so expensive.
F&B paints are very difficult to colour match. They use a lot of chalk in the mix to simulate the old paints that were in use before modern acrylics and alkoids came along.
Other manufacturers have now got onto F&B's niche market with cheaper products.
Professional decorators hate F&B paints as they’re watery and take at least 1 more coat to cover. Dulux will match so close that you can’t tell the difference. It won’t be called elephants breath but something like 1010 Y43.