Pegase mentioned red twice ad I think one of those reds should have been blue. Don't quote me; it's a guess! But based on before and after photos I've seen, blue is an option.
Prepster, your info is hugely valuable. I have been playing with color wheels and came to the same basic conclusion about the primary colors. If you mix red, yellow, and blue paints, you get mud. So a red/yellow (i.e., orange) added to blue will be mud; a blue/yellow (i.e., green) added to red will be mud, etc. Colors adjacent on the wheel are more likely to turn out well when combined.
I have to pick out two or three scarves and figure what the best color wash will be for each!
It will require the use of my brain. Pray for me.
ETA: I really hope there is blue--I have an intense, billiard-table green bordered 140 that is lovely but not me. Turning it teal with a blue wash would be
awesome!