画像コンバーター


Image Color Replacer

Choose a source color, target color, and matching tolerance to recolor logos, graphics, and flat-color image areas.

Upload an image, choose a source color and replacement color, then adjust tolerance.

Color distance matching

Tolerance includes nearby shades instead of replacing only one exact RGB value.

Instant pixel count

See how many pixels matched after each color or tolerance adjustment.

Local canvas processing

Recolor the original-resolution image entirely inside the browser.

仕組み

  1. 1

    画像をアップロードする

    Choose a PNG, JPG, WebP, or another browser-supported image.

  2. 2

    Select colors

    Set the existing color, replacement color, and tolerance.

  3. 3

    PNGをダウンロード

    Export the recolored image with its original dimensions.

Choosing an effective tolerance

Start with a low tolerance for flat graphics and increase it gradually for anti-aliased edges or photographed objects. A high tolerance can affect unrelated colors, so review the full preview before export. This method changes RGB values and preserves each pixel alpha value.

よくある質問

What does tolerance control?

Tolerance sets how far a pixel color may be from the selected source color and still be replaced.

Does it preserve transparency?

Yes. The replacement changes RGB values while leaving alpha values unchanged.

私の画像はアップロードされていますか?

いいえ、画像はブラウザーに残ります。

Image Color Replacer last reviewed: Aug 20, 2026.