I have the light gray leather in my RX, and a car seat. I use a leather cleaner and then a leather protection cream on my seats when I detail, and also use a seat protector under my daughter's car seat, and have no issues. The light gray leather does pick up blue jean dye and such, but with the right cleaner, wipes right off. It's a bit of work, but I still love it.
2013 RX350 AWD
2014 IS350 AWD