Black, red paint can be turned into brown.

1, the mixing of brown can be mixed out of the brown color has three kinds of color matching, containing green brown is one of the namely: green + red = brown;

2, the principle of color mixing red, green, blue and three basic colors in accordance with different proportions of the synthetic mixing color can be made into an additive mixing color. Brown is the use of the principle of red and green mixed into brown.

3, mixed into brown other color matching methods

Violet + yellow = brown

Orange + blue = brown

Expanded

Three basic laws

Complementary color law

Where the two in the right proportion to the mixing of the colors to produce a white color light is a complementary color. For example, red and light lime green, orange and cyan, yellow and blue, and green and violet are pairs of complementary colors.

Intercolor Law

In mixing two non-complementary colors, a new intermediate color between them is produced. For example, mixing red and yellow produces orange, and mixing blue and red produces purple. The intermediate color has more of the hue of the one color, and the saturation is determined by the position of the two colors in the spectral track, with the closer they are the more saturated they are.

The law of substitution

If color A+color B=color C, and if there is no color B, and color X+color Y=color B, then A+(X+Y)=C. This means that each of the colors being mixed can itself be obtained by mixing the results of other colors. For example, if yellow and blue are mixed, yellow can be replaced by red plus green, because "red 10 green = yellow".

Baidu Encyclopedia - Color Mixing