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Turn any Windows 11 desktop into the color-lab of your dreams. Custom Color Vision lets you drop in a simple 1D spectrum or 2D image and instantly remap every pixel on the chosen monitor. Simulate any color vision deficiency, highly modifiably daltonise games and apps that forgot about accessibility, or even craft an altered or “better-than-normal” trichromacy for yourself—all at full-screen, real-time speed.  

100+ starter spectra for the Custom Color Vision application. Includes color vision deficiency, dichromacy and monochromacy simulations, Daltonisations, themed spectra, trichromatic enhancements, and many more custom spectra!

In this article I aim to explain color vision deficiencies from a perceptual and color space oriented perspective. We'll also look at the retina and its cone cells as well as their simplified and normalized response spectra to spectral stimuli. Unprecedentedly, this article presents a novel method to simulate color vision deficiency of any severity and functionally correct the three major dichromacies (protanopia/deueranopia/tritanopia) as well as the many transitional color vision deficiencies (protanomaly/deuteranomaly/tritanomaly) by constructively disrupting the chromatic redundancy of binocular color vision to create novel color experiences.  

True-red non-retinal moderately functional tetrachromacy represents a binocularly mediated, perceptually transformative advancement in human binocular trichromatic color vision. At its core lies the strategic disruption of chromatic redundancy inherent to binocular (trichromatic) vision. This is achieved through a pair of inversely transmissive spectral filters, engineered to isolate distinct long-wavelength (L-cone) sensitivity ranges across the eyes. This dichoptic division generates two virtual L-cone subtypes, creating mutually exclusive spectral perception across the eyes. The resultant system enables hybrid chromatic integration: retinal (intraocular) mixing of S, M, and L- cones in the first eye, and non-retinal (interocular or binocular) fusion of (positive and negative) L+ signals with the protanomalous trichromatic output of the contralateral eye. The result is a moderately functional tetrachromatic vision for trained binocular trichromats.

Discover my PC/VR application Color in Color which incredibly augments human color vision! Unlock an incredible amount of 140 trillion impossible colors and implement them into your vision. (This article and app are still in development.)

This article shows how disrupting the chromatic redundancy of binocular trichromatic color vision via stereo viewing techniques can yield moderately functional hexachromatic color vision in trained viewers that have access to adequate technology.

Find out about the concept of impossible colors and how they relate to the human potential for hexachromacy. Learn to accurately name impossible colors and identify them via dodecadecimal codes.

Find out about temporal colors that can be used as a substitute for impossible binocular color combinations for those who cannot use stereo viewing techniques or don't have VR headset.