As i don't do trousers I only ever wear coloured tight, have done since my teens. They do seem to be getting harder to find though. I used to get winter wooly one from BHS but now get them from
hereAlthough they are Acrylic they are lovely and soft and they do stay up. The BHS ones i have threaded some knicker elastic through the top so they stay up.
For "best" i have fishnet or lace tights in ever colour, i also have some vintage i.e from when i was younger, Mary Quant tights with her trademark red poppy all over them.
One colour i definitely don't do and that is black in any form or shape, so depressing.
I also have chunky ankle socks in all colours that i wear with my walking shoes this time of year, when it is not cold enough yet for tights but fields dictate strong shoes are needed.
So if you see a middle aged women in colourful clothes and stout walking shoes with either ankle socks or equally colourful tights and 2 Westies in tow that will be me.