Blue emulsion paint (Horfield BS10)

IWe are in need of some mid blue emulsion paint if anyone can help.
It is just for painting a piece of wood we are making a game out of for our street party happening next weekend so doesn't have to be a lot of paint nor new just wet and mid blue - roughly the sort of the colour of the blue in the Scotland flag 🏴󠁧󠁢󠁳󠁣󠁴󠁿 Thank you.