Runs/background · sample · Haiku 4.5/057
background · sample · Haiku 4.5 · trial 057 of 100
the answer
#f5f5f5
What the model said
I'd suggest **#f5f5f5** — a light neutral gray that's easy on the eyes, works well with most text colors, and is commonly used for modern interfaces. If you want something slightly warmer, **#f9f7f4** has a subtle beige tone, or **#f0f4f8** if you prefer a cooler blue-gray tint.