Recombine red, green and blue channels with your own weights.
Mix Red, Green, and Blue Channels into New Colour Looks
Every digital photo is three images in one: a red layer, a green layer, and a blue layer. Normally each layer shows itself, but there is no rule that says it must. A channel mixer lets each output channel draw from all three input channels, which creates colour looks that ordinary sliders cannot reach. This tool does that in your browser. Your photo never leaves your device, and the mixed result downloads as a PNG.
The idea is simple once you see it. Each output channel is a weighted sum. If red output is one hundred percent red input, nothing changes. If red output is one hundred percent blue input instead, reds and blues swap places in the photo. Skies turn orange, skin turns blue, and foliage turns purple. That swap is the famous infrared look, made without any special camera.
How the Mixer Works
There are nine numbers, in three rows of three. The first row builds the red output: how much red, green, and blue input it takes. The second row builds green output, and the third builds blue output. Values are percentages, and they can go negative or above one hundred, which inverts or exaggerates a channel.
The presets show the most useful starting points. Normal is the identity: each output takes only itself. Black and white takes a third of each channel for every output, which is a balanced grey conversion. Swap red and blue produces the infrared-style false colour. Soft sepia warms the photo by leaning every output toward red and green. Pick a preset, then adjust individual numbers to taste.
Using the Tool
Choose a photo and try a preset first. The preview updates when you press the mix button, and the original button lets you compare. Change one number at a time and re-apply. A change of twenty points in one cell is clearly visible; a change of five is subtle. That is the scale to think in.
Keep an eye on the total of each row. Rows that add up to about one hundred keep the brightness roughly the same. Rows that add up to much more blow out to white, and rows that add up to much less go dark. If your mixed photo looks too bright or too dark overall, check the row totals before blaming the photo.
Looks Worth Trying
Black and white from a mixer beats a simple desaturation, because you control the mix. Raising the red share lightens skin and darkens skies, like a red filter on black-and-white film. Raising green lightens foliage. Try a mix of forty red, forty green, and twenty blue for a natural grey, then shift from there.
False colour is the creative star. Swap red and blue for the infrared look, or swap green and blue for an alien green world. These looks suit landscapes best, because skies, grass, and water change dramatically while the shapes stay familiar. Portraits in false colour look strange, which is sometimes exactly the point for posters and album art.
Colour correction is the quiet use. A photo with a stubborn cast sometimes resists temperature sliders, because the cast lives mostly in one channel. Reducing that channel’s share in all three outputs, or raising the opposite channel, can neutralise it more cleanly. It is a precision tool for people who have tried the simple fixes first.
Common Mistakes
The classic mistake is pushing every number at once and losing track of what changed. The mixer rewards patience: one preset, one tweak, one comparison. Another mistake is forgetting to compare with the original. Extreme mixes look exciting for a minute and tiring after an hour. If the photo is for a client or a print, sleep on the extreme version before committing.
Clipping is the technical trap. Values above one hundred or below zero in a row can push pixels past white or below black, losing detail in bright and dark areas. The tool clamps the result, so nothing breaks, but clipped areas lose texture. If skies turn to flat white, pull the row totals back toward one hundred.
The tool is free, needs no account, and runs on any device with a browser. Upload a photo, pick a preset, tune the nine numbers, compare with the original, and download your new colour look. Your photo stays private throughout.
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