Crayola Ultra Clean Washable Markers are the greatest ever. I always use these for marking and have never had a problem with any color. I've left them on a quilt for more than a year, ironed on them, and they always wash out. I do wash every quilt in the machine on warm (with color catchers because I'm not a prewasher) with detergent and these markers wash out every time. Whenever the kids have to do the 100 Days of School shirts, we always mark on their white t-shirts with these markers in every color and they wash out perfectly every time. Every color. Every time.
Link so you can you see exactly which kind:
https://www.amazon.com/Crayola-Washable-Markers-Classic-Colors