best · sample · Opus 5.5 · trial 050 of 100

What the model said

Blue — specifically a deep blue, like the sky about twenty minutes after sunset. It's calm without being dull, it's the most common favorite color across cultures, and it pairs well with almost everything.

That said, "best" depends on the job: green is easiest on the eyes, red grabs attention fastest, and for terminal text on a dark background, a warm amber is hard to beat.