Invert Image Colors

“Invert colors” sounds like one operation, but there are several useful ways to do it. The classic negative flips every color to its opposite. Designers and developers often want something different: a dark version of a diagram or screenshot where the colors keep their meaning. This tool offers three inversions and lets you compare each with the original.

Full negative

Each red, green and blue value becomes 255 minus itself. White becomes black, yellow becomes blue, skin tones turn cyan. This is the classic film-negative look and is mathematically perfect: inverting the result again gives back the original exactly. Use it for artistic effects, for reading faint pencil marks on scans, or for teaching how color channels work.

Inverting single channels

In full negative mode, red, green and blue can be switched on or off separately. Inverting only one channel produces striking color shifts: inverting blue alone turns a blue sky yellow-white and leaves greens mostly intact. It is a quick way to explore color relationships or create unusual graphic styles.

Keep colors: a smart dark mode

This mode swaps light and dark but rotates the hues back, so the colors stay recognizable. A white page with black text and a blue chart becomes a dark page with light text and a still-blue chart. It is ideal for dark-mode versions of diagrams, documentation screenshots, slides and whiteboard photos, where a plain negative would turn every highlight into a confusing opposite color.

Lightness only

The third mode works in OKLab, a color space designed around human perception. It inverts perceived lightness and leaves hue and saturation untouched. Midtones stay close to where they were, while very light and very dark areas swap. The result tends to be gentler than the hue-keeping mode and works well for photos and illustrations that should look like a “night version” of themselves.

Transparency

Transparent areas stay transparent in every mode; only the visible colors change. Logos and icons with transparent backgrounds can therefore be inverted for use on dark backgrounds, then saved as PNG or WebP.

Preview and download

The preview is computed on a reduced copy for speed, with a switch to compare against the original. When you download, the full-resolution image is processed with the same settings. Choose JPG for photos, PNG for graphics and transparency, or WebP for the web.

Practical uses

Reading a light pencil sketch more clearly, creating dark-mode screenshots for documentation, making a negative effect for posters, checking how a logo works reversed out of a dark background, or preparing inverted art for printing techniques that need negatives.

Why inverted screenshots look wrong

Applying a plain negative to a screenshot for dark mode is a common mistake. Brand colors flip to their complements, photos inside the screenshot look like X-rays and green success messages turn magenta. The hue-keeping mode avoids exactly that. For screenshots containing photos, crop the photo out or accept that it will look unusual in any inverted version.

Privacy

All processing runs in your browser; the image is never uploaded.

Related tools

For black and white instead of inversion, use Grayscale Image. The Digital Negative Maker prepares negatives for alternative printing processes, and Invert PDF Colors does the same for documents.