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The World Seen By Color Blind People

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Color Blindness Obscures Common Signs

TheThings Celebrity’s video “The World Seen By Color Blind People” breaks down exactly how much of the visible spectrum roughly 4.5% of humanity never actually sees, and why the old “black and white” stereotype is mostly wrong. Using side-by-side simulations of protan, deutan, and tritan vision against standard trichromatic imagery, the video shows sunsets, traffic signals, and everyday scenes shifting into muted, overlapping tones. It’s a straightforward, visually driven explainer rather than a personal story, built entirely around comparison shots and the biology behind them.

• Color vision deficiency affects an estimated 4.5% of the global population, including roughly 1 in 12 men and 1 in 200 women.
• Standard trichromatic vision distinguishes up to 1 million shades, while color-deficient vision can register as few as 10,000 distinct tones.
• The video separates the condition into three core categories: red-green (deuteranomaly/deuteranopia and protanomaly/protanopia), blue-yellow (tritanopia/tritanomaly), and complete monochromacy.

The Biology Behind the Blur

Color blindness traces back to the cone cells lining the retina, which contain photopigments tuned to detect red, green, and blue wavelengths. When one of those pigments is missing, malfunctioning, or overlapping with another, the brain loses its ability to cleanly separate certain hues. Because the genes controlling red and green photopigments sit on the X chromosome, the condition is passed down far more often to men — the 1-in-12 figure dwarfs the 1-in-200 rate seen in women, who typically need the trait on both X chromosomes to show symptoms.

The video is careful to knock down the most persistent myth about the condition: that color blind people see everything in grayscale. That’s actually achromatopsia, an extremely rare form of total color blindness. Most people classified as color blind still perceive color — just a compressed version of it, which is where the gap between 1 million shades and 10,000 shades becomes the real story.

Where standard trichromatic vision distinguishes up to 1 million shades, color-deficient vision can register as few as 10,000 distinct tones.

Red-Green, Blue-Yellow, and the Rare Cases

Red-green color blindness is the form most people are familiar with, and the video splits it into deuteranomaly and deuteranopia (green-cone issues) versus protanomaly and protanopia (red-cone issues). In practice, this is the category that turns reds, greens, oranges, and browns into a muddled cluster that’s hard to tell apart at a glance. Blue-yellow deficiency — tritanopia and tritanomaly — is rarer and works the other direction, scrambling blues and yellows instead. Complete monochromacy, the true “everything is gray” condition, sits at the far end of the spectrum and affects only a tiny fraction of people compared to the red-green cases.

Primary Challenges for Colorblind Pedestrians

The video’s more practical stretch is about where color deficiency creates friction in ordinary tasks. Reading color-coded charts and maps, matching an outfit without help, and picking out ripe produce all get harder when reds and greens blur together. Drivers with the condition often learn to judge traffic lights by position on the pole rather than by the color of the lens, since red and green can look nearly identical to a protan or deutan viewer. Sports present their own version of the problem — tracking a ball against a green field is a different task entirely when green isn’t a distinct color to begin with.

None of that stops people from getting through daily life; it just means the workaround becomes second nature. That’s the throughline of the video’s simulation shots: the same sunset, traffic intersection, or stadium field rendered four different ways, showing just how much of that navigation is happening automatically and invisibly to everyone else around them.

Everyday Explainers Like This One

TheThings Celebrity built its channel on exactly this kind of quick-hit rundown — pulling apart a subject most viewers assume they already understand and showing the actual numbers behind it. It’s the same instinct behind lighter entries in the outlet’s catalog, like the hardest tongue twister breakdown, or bigger-scale stunts such as the World’s Largest Challenge! video — content built around a simple visual hook that turns out to have more going on underneath.

The video doesn’t end on a call to action or a big reveal — it just runs through the last comparison shot, monochromacy against full color, and lets the difference speak for itself. That’s the whole pitch: 10,000 shades versus a million, side by side, no narration needed to make the point land.