What makes the blood red color?

Answer 1

1. none, red is a primary color along with yellow and blue. primary colors are the three colors that when mixed together correctly make every other color in the light spectrum
2. there is not any colors to make red because red is a primary color
3. The above are old technology, and are now obsolete. Using currently known information, the colors Magenta and Yellow, mixed in equal proportions, produce red. Red is a primary color of light, but it is no longer a primary color of pigments because of these new discoveries.
4. There are two ways of creating colors - additive and subtractive.
5. The additive method refers to adding light, thus the more colors added, the lighter the color. The additive primary colors are Red, Green and Blue (Yellow is made by mixing Red and Green). Mixing the three together will result in the lightest color - white. The additive method answer to this question is similar to 1., above: no colors are mixed to create Red because it is a primary additive color.
6. The third item above refers to subtractive colormixing using, most often, pigments. The pigments subtract or absorb colors from white light. For example, Green pigment absorbs Red and Blue and reflects Green. Another example of how subtractive colors work is Yellow absorbs Blue from white light, reflecting Red and Green, the two additive primaries that create Yellow. The more subtractive colors used, the darker the color. Expertly mixing the three primaries (Magenta (Fuchsia), Cyan (Turquoise) and Yellow) will result in black. More often, mixing all three results in a brown muddy color when using water colors and other pigments. Thus, the third item above is the answer this question regarding how to mix Red when using subtractive colors: mix Magenta and Yellow.

Answer 2

Our blood contains cells which carry the oxygen through our body. These cells are red and they give the color to our blood.