It's black with summery flowers on. I wore it to a wedding two years ago as it was suitable for breastfeeding - jazzed it up a bit with colourful belt and handbag.
For the funeral, the family have said the deceased wouldn't want everyone to wear black so other dark colours and floral are fine.
Is there some convention against wearing the same outfit to both? There will be a couple of people who attended the wedding there but I doubt they will give a monkeys what I'm wearing. All other outfits would probably be what I'd wear to work...