I am looking for five different colours/fill styles for the bars in a TikZ chart. The bars are quite narrow. I want them to be distinctive when viewed onscreen or printed in colour, but also distinctive if the same PDF file gets printed in black and white.
Can anyone recommend a good set of colour definitions? Or some other way of filling the bars to make them distinctive in both scenarios? A bonus (non-essential) would be if colour-blind people could also tell them apart easily.
To clarify, I do not want to produce a greyscale PDF file, or generate a separate output for black and white printing, as I have seen in some other answers. Thanks!