Logo Colors Changer

Uploads a logo PNG and replaces every pixel whose color is within a tolerance of a chosen source color with a new target color, leaving each matched pixel's alpha untouched, so you can rebrand a logo's palette without a design tool. A free online tool from Staaarter, right in your browser.

Runs locallyUpdated 2026-07-26

Overview

Introduction

This tool recolors a logo by swapping one specific color for another, right in your browser, with no design software required.

You pick the color to change from, the color to change to, and how loosely to match similar shades.

What Is Logo Colors Changer?

A logo-focused wrapper around the site's general PNG colors changer: it scans every pixel, measures its Euclidean color distance to the source color, and replaces matches with the target color.

It's useful for quick rebrands, seasonal palette swaps, or fixing a logo exported with the wrong shade.

How Logo Colors Changer Works

For each pixel, the tool computes the squared RGB distance to the source color and compares it to your tolerance squared; matches get their RGB replaced with the target color while alpha stays untouched.

A tolerance of 0 only matches an exact color; higher tolerances also catch anti-aliased or lightly-varied shades of that color.

When To Use Logo Colors Changer

Use it to update a logo's primary brand color without re-exporting from a design tool.

It's also handy for producing quick seasonal or promotional variants of an existing mark.

Features

Advantages

  • Runs entirely client-side; nothing is uploaded to a server.
  • Adjustable tolerance handles anti-aliased edges gracefully.
  • Preserves transparency and untouched colors exactly.

Limitations

  • Only swaps one color pair per run — multi-color logos need multiple passes.
  • A tolerance that's too high can bleed into unrelated but similarly-toned parts of the logo.

Examples

Swap brand red for brand green

Input

400x400 PNG logo, from #E11D48, to #16A34A, tolerance 20

Output

Same logo with the red elements now green

A moderate tolerance catches slightly shaded or anti-aliased reds without touching unrelated colors.

Fix a slightly-off blue

Input

200x200 PNG icon, from #2563EC, to #2563EB, tolerance 5

Output

Icon's near-blue pixels corrected to the exact brand blue

A tight tolerance targets only near-exact matches, useful for small color corrections.

Best Practices & Notes

Best Practices

  • Pick the exact source color with the Logo Color Picker tool first for the most accurate match.
  • Start with a low tolerance and increase gradually while checking the preview.

Developer Notes

This lib function is a thin, validating wrapper around the already-shipped `changePngColors` from the general PNG category — the Euclidean color-distance replacement math is identical whether the source pixels are a logo or any other PNG.

Logo Colors Changer Use Cases

  • Rebranding a logo's primary accent color
  • Creating a seasonal or promotional color variant of a mark
  • Correcting a slightly off-brand color in an exported logo

Common Mistakes

  • Using too high a tolerance and accidentally recoloring unrelated logo elements.
  • Forgetting that only one color pair is changed per run when a logo uses several similar shades.

Tips

  • Use the hex color inputs for pixel-precise source and target colors.
  • Chain this with the Logo Background Changer if both the mark and the backdrop need new colors.

References

Frequently Asked Questions