I won't have time to shop beforehand and after raiding my wardrobe these are the only semi-formal things I have which seem appropriate, although neither are particularly colourful or bright which is what has been specified.
I've never been to a funeral before and don't know any of the family well enough to check with them so would either of these work?
Dress would be worn with black tights.
Top would be worn with black trousers.
Have black pumps to go with either.