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Grayscale weight

Convert RGB picks to single-channel gray.

Client
Gray: 99 · rgb(128 64 200)

Nearby workflows on Toolcore

  • Color tools — Hub for converter, harmony palettes, tint/shade scales, Tailwind-style theme, MUI createTheme palette, HeroUI-style CSS variables, WCAG c… when color values need conversion, contrast review, or theme export.
  • Hex relative luminance — WCAG relative luminance from hex. when color values need conversion, contrast review, or theme export.
  • WCAG contrast checker — Foreground vs background: contrast ratio and WCAG AA/AAA for normal and large text. when color values need conversion, contrast review, or theme export.
  • Image color palette — Extract dominant hex colors from an uploaded image—canvas sampling in the browser; not a harmony generator. when color values need conversion, contrast review, or theme export.

Common use cases

  • Grayscale weight for quick local checks without uploading data.
  • Copy results into tickets, docs, or classroom notes.

Common mistakes to avoid

  • Unexpected input shape

    See the intro and how-to notes for accepted formats.

FAQ

Is processing local?

Yes—this runs entirely in your browser.

Agent prefill?

Use q or qb for the main text field when supported.

More tools

Related utilities you can open in another tab—mostly client-side.