"Already showing? That's modest." Heh! What's modest is the amount of restraint that easy jab has, if still accompanied by a smile to share with Roland before he gets back to the actual point of their conversation.

"Yeah, you don't need to keep it if you don't like it. You can get stuff that comes out after a few washes. I needed the good stuff because I was in water all day - but we could get you something that's in for a day, or a week."

He's explaining for Inigo's benefit, whether or not he's doing a good job to be decided by someone else. But now he's thinking, looking at Inigo's hair.

"You wouldn't look bad... with a lighter colour. Right? I bet you could pull off a brown too. A brown-brown?" You know. Brown-brown! Oh, wait- "Rich."

That's what he thinks he means.