Image Color Replacer
Replace a selected image color with a new color using adjustable tolerance.
Replace a Color in an Image
This tool finds pixels close to a selected source color and replaces them with a new color. Tolerance determines how broad the matching range is.
Example
If a logo contains a red area near #FF0000, you can replace it with green #00AA66. A medium tolerance also changes nearby red shades created by antialiasing.
Factors That Affect the Result
Low tolerance changes only very close matches, while high tolerance can alter unrelated colors. Flat graphics usually produce cleaner results than photographs because photos contain many subtle color variations.
Frequently Asked Questions
Does the tool work on gradients?
Yes, but a higher tolerance may be needed to include multiple shades.
Does it change image dimensions?
No. The output keeps the original width and height.
Is the image uploaded?
No. Processing runs locally in your browser.
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Technical Details and Limitations
Color replacement usually matches pixels by color distance or tolerance rather than semantic object boundaries. Anti-aliased edges, shadows and compression artifacts contain nearby colors, so tolerance that is too narrow leaves fringes while a broad tolerance can alter unrelated areas.
Technical Details and Practical Limits
Color replacement normally uses a tolerance around the selected color rather than semantic object recognition. Anti-aliased edges, shadows and JPEG artifacts contain nearby colors, so narrow tolerance can leave fringes while broad tolerance may alter unrelated areas.