Color picker
Convert HEX/RGB/HSL. Copy CSS or share a link.

This tool runs only in your browser. It does not upload your input anywhere.

Tip: “Share link” encodes the current color into the URL hash so you can reopen the same state.

Preview
The quick brown fox jumps over the lazy dog.
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Quick contrast
vs black
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vs white
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Use this as a quick sanity check. For full WCAG checks, use the contrast checker tool.
About / 關於

Color picker (HEX/RGB/HSL) — Convert colors between HEX/RGB/HSL. Includes a quick contrast sanity check vs black/white, copyable CSS snippet, and shareable links. Browser-only MVP.

Example: Use this tool to sanity-check numbers quickly, then share the link if you need to discuss with others.

FAQ: (1) Does it upload my data? No—runs in your browser. (2) Can I share results? Yes—use the share link feature. (3) Is it authoritative? Treat it as a convenience, not professional advice.

色彩選取/轉換（HEX/RGB/HSL） — HEX/RGB/HSL 互轉，附快速對比度（黑/白）檢查、可複製的 CSS 片段與可分享連結。純前端 MVP。

範例：用這個工具快速試算與對照結果，需要討論時再把連結分享給對方。

FAQ： (1) 會上傳資料嗎？不會，計算在瀏覽器內完成。 (2) 能分享結果嗎？可以，用分享連結。 (3) 準確嗎？請把它當作便利工具，不是專業建議。