" Then, with a cheeky quirk of his brows, he leaned forward and murmured, “Would it be improper of me to admit that I am inordinately flattered by your attention to
the details of my face?”
Anne snorted out a laugh. “Improper and ludicrous.”
“It is true that I have never felt quite so colorful,” he said, with a clearly feigned sigh.
“You are a veritable rainbow,” she agreed. “I see red and . . . well, no orange and yellow, but certainly green and blue and violet.”
“You forgot indigo.”
“I did not,” she said, with her very best governess voice. “I have always found it to be a foolish addition to the spectrum. Have you ever actually seen a rainbow?”
“Once or twice,” he replied, looking rather amused by her rant. "

― Julia Quinn , A Night Like This (Smythe-Smith Quartet, #2)