The primary colors that cannot be created by mixing other colors are traditionally red, yellow, and blue. These colors are considered fundamental because they serve as the building blocks from which all other colors can be mixed, but themselves cannot be formed by mixing other colors.
Additional Details:
- In traditional color theory (often used in painting), red, yellow, and blue are the primary pigments.
- For light (additive color mixing), the primary colors differ and are red, green, and blue.
- For printing (subtractive color mixing), cyan, magenta, and yellow are used as primaries since they cover the range more efficiently than red, yellow, and blue paints.
- The concept of primary colors is model-dependent, but within the traditional RYB (red-yellow-blue) model, these three colors cannot be made by mixing others, making them the true "primary colors" in that context.
Thus, the answer depends on which color system is being discussed, but classically the three primary colors that cannot be created by mixing other colors are red, yellow, and blue.