Grey text below contrast floor
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Rule · bucket: mechanical · severity: error · detector: contrast-floor · since: v0.1.0
Section: Things to avoid
Group: Colour and contrast

Forbidden:
  A mid-grey (ramp step `-500` or lighter) used for secondary text, placeholders or timestamps

Instead:
  `--color-text-weak` for secondary text, at any size — it clears 4.5:1 on every surface in the system, which is why there is no lighter grey to reach for. Those are the only two foreground greys, deliberately: a value that passes only at large sizes is the thing this rule forbids. If `--color-text-weak` looks too heavy, the answer is more space or a smaller size, not a paler grey. See the contrast contract in `02-tokens.md`: `-500` and lighter are never text on a light background. Check placeholders and disabled states specifically; they are the usual failures.