Tertiary colours

The governing concept is proportional colour mixing: the component used in greater quantity has a stronger influence on the resulting hue. Since blue exceeds green in this mixture, the visual balance shifts toward blue, so option C is correct. Yellow and red are not components of the stated mixture, while violet would require a stronger red or violet influence rather than simply more blue.

On the traditional colour wheel, yellow and orange are adjacent, and yellow-orange is the intermediate tertiary hue created from them. Placing it between the two gives a gradual visual transition instead of an abrupt change. Thus option B is correct. Red-orange lies between red and orange, yellow-green lies between yellow and green, and red-violet belongs to the red-violet region.

A tertiary colour is formed by combining a primary colour with an adjacent secondary colour, so its appearance reflects both contributing hues. Blue-green combines the cool character of blue with the natural green character of green. Therefore option D is correct. Yellow-green includes yellow and green, blue-violet includes blue and violet, and red-violet includes red and violet, so none of those names describes the stated pair.

The colour wheel arranges related hues in a continuous sequence. Moving from blue toward green, the intermediate tertiary hue is blue-green, which combines the neighbouring qualities of both colours. Hence option C is correct. Blue-violet lies on the blue-to-violet side, yellow-green lies between yellow and green, and red-orange lies between red and orange, so they do not fit this sequence.

Colour selection in art depends partly on the mood suggested by a hue. Blue-green combines the cool association of blue with the natural freshness of green, so it can suggest calm water, sea air, and a peaceful marine setting. Thus option C is the best choice. Red-orange and yellow-orange are warmer and more energetic, while red-violet is dramatic rather than serenely marine.

On a traditional colour wheel, red and violet are adjacent hues. Mixing them in equal amounts produces the intermediate tertiary hue red-violet, so option D is correct. Blue-violet lies between blue and violet, red-orange lies between red and orange, and yellow-green lies between yellow and green; none of those represents the stated pair.

The governing definition is that a tertiary colour results from combining a primary colour with the adjacent secondary colour on the colour wheel. Therefore, identifying its two neighbouring components is the most reliable method, making option C correct. Brightness describes value, shape is unrelated to hue classification, and adding black only darkens a colour without proving that it is tertiary.

The governing concept is the position of tertiary colours on a colour wheel. Red and violet are adjacent, and the intermediate mixture between them is red-violet. Therefore option A is correct because it visually bridges the two neighbouring hues. Blue-violet lies between blue and violet, red-orange lies between red and orange, and yellow-green lies between yellow and green, so those distractors connect different pairs.

The governing concept is colour value modification. Adding white lightens blue-green without replacing its basic hue, producing a tint; therefore option A is correct. A shade is made by adding black, and a tone is generally made by adding grey, so options B and C use the wrong modifying colour. The mixture does not become pure green because white changes lightness, not the hue into a different unmixed colour.

The governing concept is the distinction between colour hue and value. Adding black lowers the value of red-violet, making a darker shade while retaining the basic red-violet family. Therefore option B is correct. Black does not turn the colour into yellow-green or a primary colour, and it does not normally increase brightness or intensity. White would create a tint, whereas black creates a shade.

The governing concept is the structure of the traditional twelve-part colour wheel. It contains three primary colours, three secondary colours and six tertiary colours positioned between adjacent primary and secondary hues. The calculation is 12 − 3 − 3 = 6, so option D is correct. The other numbers do not match the standard division of the wheel into its primary, secondary and intermediate colour groups.

The governing concept is tertiary colour construction: a primary colour is mixed with the adjacent secondary colour. Red is the primary and orange is the secondary named in the question, so their mixture is red-orange, making option A correct. Yellow-orange uses yellow with orange; red-violet uses red with violet; and blue-green uses blue with green. Identifying both components removes the distractors.

The governing concept is a graded hue transition on the colour wheel. Blue-violet is formed from blue and violet and is positioned between those hues, so it acts as an intermediate step. Placing it between the two original colours reduces the abrupt visual jump and creates continuity. Red-violet lies on the other side of violet, while blue-green and yellow-orange are farther away. Therefore, option B is correct.

The governing naming rule is that a tertiary colour is identified by the two neighbouring hues used to form it. Orange mixed with yellow produces yellow-orange, because yellow is the primary hue named first in the direction of the mixture. Red-orange would require red and orange. Thus the student’s practical mixture may be valid, but its label is wrong, making option C correct.

The governing concept is the intermediate position of a tertiary hue on the colour wheel. Yellow-orange is created from yellow and orange and lies between them, so it provides a gradual bridge rather than an abrupt change. Red-orange is closer to red, yellow-green is on the other side of yellow, and blue-green is much farther away. Therefore, yellow-orange, option C, best reduces the visual gap.

The governing concept is tertiary-colour formation on the colour wheel. Violet is produced from red and blue; when a little more blue is added, the mixture shifts toward the blue side and becomes blue-violet. Thus option C is correct. Adding green to yellow gives a yellow-green direction, yellow with red moves toward orange, and red added to orange produces red-orange rather than blue-violet.

The governing concept is the relationship between a secondary colour and a neighbouring primary colour. Orange already contains red and yellow; adding a little more red shifts its appearance toward red and creates red-orange. Therefore option D is correct. Green with yellow moves toward yellow-green, blue with red normally produces violet, and white with orange creates a tint rather than the named tertiary colour.

The governing concept is tertiary-colour formation by changing the balance of a secondary colour. Green contains blue and yellow; adding more yellow moves the mixture toward yellow and produces yellow-green. Thus option A is correct. Blue added to violet creates blue-violet, red added to orange creates red-orange, and white added to red makes a lighter tint rather than a tertiary colour.

The governing concept is the formation of a tertiary colour by adding a neighbouring primary colour to a secondary colour. Orange is made from red and yellow; adding more yellow shifts it toward yellow and produces yellow-orange. Therefore option B is correct. Yellow added to green produces yellow-green, red added to violet produces red-violet, and green added to blue moves toward blue-green, so those choices name different colour relationships.

The governing concept is the position of tertiary colours between a secondary colour and a neighbouring primary colour. Violet is made from red and blue; adding more red shifts violet toward red and produces red-violet. Hence option C is correct. Yellow added to green gives yellow-green, yellow added to orange gives yellow-orange, and green added to blue gives blue-green, so none of those mixtures has the required red-violet bias.