best · sample · Opus 5.5 · trial 061 of 100

What the model said

Blue — specifically a deep, slightly green-leaning blue like teal or petrol. It's the most widely preferred color across cultures in surveys, it's easy on the eyes, and it works nearly everywhere: calm as a background, sharp as an accent.

That said, "best" depends on the job. For grabbing attention, red wins; for readability in a terminal, it's hard to beat a soft amber or green on dark.