The Dot Generator is free, all major brands, thousands of colors. Link is not published, so don't lose this one https://thelandofcolor.com/paint-dot-generator

There are 5 different dot styles to choose from; don't miss the "swap" toggle button.

Dots are connected to the Paint Color DNA Table which means the digital paint colors are made using our own measurements. No such thing as an official hex code or RGB values but this is close as possible.

Click on a dot and it saves to your clipboard, there's a Mood Board behind the Dot Board, you can paste your dots there. Build palettes. You'll find it has all usual suspect tools needed to make a Mood Board.

Iris, the AI Color Strategist® helps out at the bottom with a word bank from her ontology.

Again, the generator is free but there are 3 links to things at the LoC that are not free. I chose that instead of ads. Because ads on a page that is built to be used as a tool drives me bonkers.