I have a tangerine day. Love the color! It's definitely not a muted orange. It's bright but not over the top. I have a reveal thread of this bag (called Reveal Time if you want to look it up). I described it as the color of orange soda with a little vanilla ice cream. Here are some pictures, hope they help!
Oh yeah, I've had it for over a year and have had no fading or color transfer issues yet! Love this bag!!
I got my tangerine city last July (it looks darker in this pic than in real life, I agree with Heart Star about the colour) and the colour is still perfect, no fading or colour transfer. I don't use it all the time, but it hasn't shown any wear at all yet. It's a lovely fun colour, always makes me smile