Whether it’s wallpaper or paint, colours look different depending on the amount you can see and the light in the room. Here’s how to pick your shade
Check colours in the room you’re decorating, not in store. A colour card only shows tiny amounts so can be deceptive; if in doubt, choose a couple of shades lighter. Use a sheet of white paper to isolate your colour choice without it being affected by nearby shades.
Buy three tester pots in related colours and paint at least 60 sq cm onto lining paper. When dry (colours often dry a little darker) tack them up, trying them on different walls to check the effect.