Decorating, anyone suggest sources for bright colour paint

[Bougie]

Our ugly awkward bathroom is small, poky, dark, full of nooks and corners with a totally weird shaped window, honestly I can't begin to describe it and it's really impossible to make it look beautiful (yes we live in an old house). So I have decided to make it look memorable and striking instead! It has creamy white tiles and I have found a beautiful dark pink/peach matt paint which looks lovely with creamy white gloss, and I want to add touches of fluorescent orange, pillar box red and/or bright lime yellow. It is finding these really bright colours that beats me. Even Dulux's range doesn't have a pillar box red or a fluorescent orange. I wonder if anyone has any suggestions or thoughts please?

[NachoNachoMan]

Try wilko? I recently used some of their paint to decorate our study and it was nicer to paint with than Dulux

This is a bright red - www.wilko.com/en-uk/wilko-durable-nearly-famous-matt-emulsion-paint-2-5l/p/0407536

[milienhaus]

Valspar paint at B&Q can be mixed to basically any colour - other mixabke paints are also available.