This is another photo which was very faded and needed to be tweaked quite a lot during scanning to get any sort of colour rendition out of it. I can't say for certain that the colours are right, but the grass is certainly green and there appears to be some yellow in the plant in the background. Also, the ladies shoes are brown which looks realistic at least.
When I picked up the slide and looked at it on a lightbox, it basically look a monochrome red image.