Colour mixing

The governing concept is control over colour intensity. Dark pigments usually have a strong tinting effect, so even a small quantity can noticeably change a light mixture. Adding the dark colour gradually allows the artist to stop at the desired shade; adding too much at once may make correction difficult. Option A is therefore correct. Drying, brush damage, and palette size do not explain this controlled method.

The governing concept is the relationship between primary and secondary colours. In a basic exercise, learners mix pairs of primary colours: yellow with blue produces green, blue with red produces violet, and red with yellow produces orange in common paint practice. Option B is correct because it teaches controlled, observable mixtures. Mixing every colour together can produce a dull result, while black-only painting or using no colour does not practise colour mixing.

The governing concept is colour mixing, especially the creation of a tint. White mixed into a hue reduces its visual intensity and makes it appear lighter; increasing the proportion of white makes yellow progressively paler. Therefore option A is correct. Adding white does not make yellow darker, green, or violet. Green or violet would require mixing yellow with other hues, not simply increasing the amount of white.

The governing concept is proportional colour mixing. Blue-green is produced from blue and green; increasing the blue component shifts the mixture toward a cooler, bluer green. Therefore option B is correct. Increasing yellow would make the mixture yellower, red would alter it toward a duller or warmer tone, and white would lighten the value rather than make the hue bluer.

The governing colour-theory concept is a tint: a colour becomes lighter when white is added. Mixing orange with white therefore produces light orange, making option C correct. Black would darken the colour, while blue or green would shift orange toward a duller, neutral or mixed hue instead of simply lightening it. The answer depends on the requested change in value.

The governing painting principle is colour cleanliness. Dirty water contains traces of earlier pigments; when it is reused, those particles enter the next mixture and contaminate its hue. Option D is correct because the result may be muddy, dull or impure colours. Dirty water does not make colours brighter, speed drying, or change the physical size of a palette.

The governing concept is colour mixing, the deliberate combination of two or more colours to produce a different colour or a new hue. For example, in a basic paint system, mixing suitable primary colours can produce secondary colours such as orange, green, or violet. Line drawing creates marks, shading shows light and dark values, and printing transfers an image or design to a surface. Therefore, option A gives the exact process named in the question.

In the traditional paint-pigment colour system, violet is a secondary colour made by mixing the primary colours red and blue; therefore, option D is correct. Yellow mixed with blue produces green, and yellow mixed with red produces orange. Green and orange are already secondary colours, so they are not the standard primary-colour pair for making violet. The exact shade may vary with pigment proportions.

In the traditional subtractive paint-colour system, orange is a secondary colour formed by mixing the primary colours red and yellow, so option A is correct. Red and blue generally produce violet or purple, while blue and yellow produce green. The other pairs do not represent the standard primary-colour combination for orange. The final shade can change according to the relative amount and strength of each pigment.

Adding white to a colour produces a lighter version called a tint, so option C is correct. For example, adding white to red produces a lighter red commonly described as pink. A shade is made by adding black, while a tone is commonly made by adding grey or a neutral colour. A complementary colour is determined by a colour-wheel relationship, not by adding white to the original colour.

Adding black to a colour makes a darker version called a shade, so option D is correct. For instance, black added to blue creates a darker blue shade. A tint is produced by adding white, and a tone is conventionally produced by adding grey or a neutral mixture. A complementary colour is selected from the opposite relationship on the colour wheel, so it is not created simply by adding black.

Adding grey to a colour generally produces a tone, so option A is correct. A tone is usually less vivid or less intense than the original colour because grey neutralises some of its brightness. In contrast, adding white produces a tint and adding black produces a shade. A primary colour is a basic colour classification, not the name of the altered result formed by mixing grey into another colour.

Adding white lightens red and produces a lighter red commonly called pink, so option B is correct. In colour-theory language, this result is a tint of red. Orange is made by mixing red with yellow, green is associated with blue and yellow, and violet is associated with red and blue. The exact appearance may vary with the paint, but white does not change red into those other colour families.

Adding white to blue increases its lightness and produces light blue, so option C is correct. In colour theory, this lighter result is called a tint of blue. Dark blue would normally be produced by adding black or using a darker pigment. Green is associated with mixing blue and yellow, while orange is associated with red and yellow; neither is the normal result of adding white to blue.

On the traditional colour wheel, yellow and red are neighbouring primary colours whose mixture produces orange. Therefore, adding a small amount of red to yellow shifts the hue toward orange, making option D correct. Yellow would move toward green if blue were added. It would not move toward blue or violet, because those hues are not the immediate direction created by adding red to yellow; the exact shift depends on the amount added.

In the traditional paint-colour system, blue and yellow combine to produce green. Thus, adding a small amount of yellow to blue shifts the hue toward green, making option A correct. The more yellow that is added, the more noticeable the green character may become. Orange results from red and yellow, while violet results from red and blue, so those directions do not describe this particular mixture.

The governing concept is subtractive pigment mixing: adding a small amount of red to blue shifts the hue toward the region between red and blue on the colour wheel. That region is violet, so option B is correct. Blue plus yellow would move toward green, while yellow or orange are not the expected directions for adding red to blue.

The governing concept is the formation of secondary colours from two primary pigment colours. Red and yellow are primary colours in traditional art colour theory; when equal amounts are mixed, they generally produce orange. Therefore option C is correct. Green would require blue and yellow, violet would require red and blue, and grey is not the expected result of this pair.

The governing concept is hue shifting caused by changing the proportion of a component colour. Green is influenced by blue and yellow; if more yellow is added, the mixture moves toward yellow on the colour wheel and appears yellow-green. Thus option D is correct. Blue-green would indicate stronger blue influence, while dark blue and red-green do not describe the expected direction of this mixture.

The governing concept is movement of a mixed hue toward the colour present in greater proportion. Green is a mixture associated with blue and yellow. Increasing the blue component shifts the hue toward blue, producing blue-green, so option A is correct. Yellow-green would result from increasing yellow, while the orange choices belong to a different colour family.

The governing concept is that a secondary colour shifts toward the primary colour added in greater quantity. Orange is produced from red and yellow. If red becomes dominant, the hue moves toward red and forms red-orange, making option B correct. Yellow-orange would indicate more yellow, whereas blue-violet and yellow-green involve different colour combinations and are not the expected result.

The governing concept is hue bias in a mixture: increasing one component moves the resulting colour toward that component. Orange is made from red and yellow, so adding or increasing yellow shifts it toward yellow and produces yellow-orange. Therefore option C is correct. Red-orange would require more red; red-violet and blue-green belong to different neighbouring colour relationships.

The governing concept is directional change on the colour wheel. Violet is formed from red and blue; when red is present in a greater proportion, the mixture shifts toward red and becomes red-violet. Thus option D is correct. Blue-violet would result from stronger blue influence, while yellow-green and red-orange are not the immediate hue direction of a violet mixture with extra red.

The governing concept is that a mixed hue shifts toward the component used in greater quantity. Violet is formed from red and blue. When blue becomes dominant, the mixture moves toward blue and forms blue-violet, so option A is correct. Red-violet would require more red; yellow-orange and blue-green are different neighbouring mixtures and do not describe this change.

The governing concept is the traditional colour classification used in art education. A secondary colour is produced by mixing two primary pigment colours; for example, red and yellow make orange, blue and yellow make green, and red and blue make violet. Therefore option B is correct. Neutral, black, or white are not the general category produced by every pair of primary colours.