That would be green.
Red
On an artist's color wheel, green is the complement of red. Orange is the complement of blue. On a printing color wheel, cyan is the complement of red. Yellow is the complement of blue.
The opposite color to pink (a tone of red) on the color wheel is green.The opposite of pink is mint green (light green) because the opposite of red is green.
Yes, they appear opposite one another on a standard colour wheel.
blue Actually its purple. If you look at the color wheel for primary colors it is always the color that is mixed by the other two primary colors. For example for red its green (blue and yellow) for blue its orange (red and yellow). So the complementary color for yellow is purple (red and blue).
Red
Contrasting color and complimentary color mean the same thing. Blue and Orange are contrasting as are red and green. On an artists color wheel six colors are arranged in a circle, red, orange, yellow, green, blue, violet. Colors opposite each other on the color wheel are contrasting or complimentary.
The contrasting color of red is green. These colors are opposite each other on the color wheel, creating a strong visual contrast when used together.
Red and green are contrasting colours, and green next to red stands out.
The contrasting color of yellow is not violet, nor indigo, But blue. Not sky-blue, or aqua, but deep blue as seen on the left.
The color wheel is used for comparing and contrasting the warm and cool colors or neutral. The warm are red yellow and orange. the neutral are brown black and white. The cool and blue green and purple
Contrasting and complimentary colours are the same thing. Green is a secondary colour. You achieved a secondary colour by mixing two of the three primary colour. In this case green is the mixture of Yellow and Blue. The complimentary colour to a secondary colour is the primary colour not used to create it; in this case the complimentary (or contrasting) colour to green is red.
color clashing like putting a deep red red on a deep brown
Red is at the top of the color wheel because red is the first color in the visible spectrum.
Brown is a combination of red, yellow and blue. A method of creating brown is discussed at http://www.wikihow.com/Mix-Paint-Colors-to-Make-Brown The contrasting color depends on the colors in the brown you want to contrast. The tertiary color wheel may be helpful with your search. Color Wheel Chart
the opposite colour to red on the colour wheel is in fact and truely green.
The opposite of green on the color wheel is red. Green and red are complementary colors, meaning they are directly across from each other on the color wheel and create a high contrast when used together.