Red colored mulch is so pretty. My neighbor uses this type of mulch in his yard and it looks so nice. They have a lot of dark green shrubs and the red mulch creates a very nice contrast. I also like brown mulch, which looks very natural and fits in with any landscape. This is the type we have in our yard. I do not like black mulch, I find it distracting but I realize that it suits some people's landscape best.
Next year, if we can afford it, I want to get red cedar bark mulch for our yard. Cedar naturally has a reddish hue and it has an lovely scent. I think it would really brighten the appearance of the yard. It's very beneficial for soil as well.