If you mix all the colors together in the subtractive color model (using pigments or paints), the result is typically a muddy or dark brownish color, rather than gray. This is because the primary colors in the subtractive model (cyan, magenta, and yellow) absorb certain wavelengths of light, causing the combination to appear duller. However, if you mix all the colors together in the additive color model (using light), the result would be white instead of gray.
