Tertiary colours

The governing concept is the visual character of tertiary colours. A ripe pumpkin commonly suggests a warm yellow-orange or orange-yellow appearance. Yellow-orange is made by combining yellow with orange and lies on the warm side of the colour wheel, so option C is the best answer. Blue-green and blue-violet are cool colours, while red-violet is warm but does not match the pumpkin’s characteristic yellow-orange shade.

The governing concept is tertiary-colour formation and visual association. Blue-green is produced by mixing the neighbouring colours blue and green, and it can suggest the blue-green appearance often noticed in peacock feathers. Thus option B is correct. Red-orange and yellow-orange belong to the warm side of the wheel, while red-violet is a different mixture and does not represent the stated blue-green shade.

The governing concept is tinting: adding white to a colour increases its lightness without changing its basic hue completely. When white is mixed with red-violet, the result becomes a lighter pink-violet tint, so option A is correct. White does not create dark yellow-green, pure orange, or black. The amount of white controls how pale the tint appears, while the red-violet colour family remains recognisable.

The governing concept is dominance within neighbouring tertiary colours. Red-orange contains orange with a stronger red influence, whereas yellow-orange contains orange with a stronger yellow influence. Therefore option A is correct. They are related but not identical colours, and both are generally warm rather than one being cool and the other neutral. Neither colour is made only from blue, so the other options contradict the mixing principle.

The governing concept is the standard twelve-part colour wheel. It contains three primary colours, three secondary colours, and six tertiary colours placed between neighbouring primary and secondary colours. Thus the student must colour six tertiary sections, making option C correct. Three and three refer to the primary and secondary groups, while four or eight do not match the usual twelve-part arrangement used in basic colour theory.

The governing concept is controlled colour mixing. Blue-green contains blue and green; if the mixture looks too green, adding a small amount of blue increases the blue proportion and shifts the appearance toward blue. Therefore option A is correct. Yellow would strengthen the greenish or warm tendency, while red or orange would introduce a different component and could make the mixture duller rather than bluer. Only a small amount should be added to avoid overshooting.

The governing concept is recording a colour recipe during practical art work. A tertiary-colour sample may be difficult to identify later by appearance alone, so writing its component colours preserves the information needed to recognise and reproduce the mixture. Option A is therefore correct. Labelling cannot make paint dry faster, thicken the paper, or change the length of a brush; those choices describe unrelated physical effects.

The governing concept is the change in value produced by adding a neutral colour. White lightens the original hue and creates a tint, so adding white to red-orange forms a red-orange tint; option A is correct. A shade is made by adding black, not white. The mixture does not become a complementary colour or pure red, because its original hue remains red-orange while only its lightness changes.

The governing concept is value, which describes how light or dark a colour appears. Adding black makes blue-green darker, so its value decreases and option A is correct. Adding white would increase the value by producing a lighter tint. Black does not change blue-green into yellow, nor can it turn a mixed tertiary hue into a primary colour; it mainly darkens the existing colour.

The governing concept is saturation or intensity, meaning the strength and vividness of a hue. Grey is neutral, so mixing it with yellow-green reduces the colour’s saturation and makes it duller or more subdued. Therefore option A is correct. Grey does not make the colour brighter, turn it red, or remove its green component to create pure yellow; it primarily weakens the intensity of the existing hue.

The governing concept is a tint: a lighter version of a hue made by adding white. When white is mixed with blue-violet, its value rises, so the colour appears lighter and softer; option A is correct. Black would create a darker shade, while adding white does not change the hue into yellow or green. The original blue-violet identity remains, but its lightness and visual softness increase.

The defining rule is that, in the traditional colour-wheel system, a tertiary colour is made by mixing a primary colour with the secondary colour next to it. For example, red plus orange produces red-orange, and blue plus green produces blue-green. Opposite colours are complementary and usually create a duller neutral mixture; black and white create a value range, while equal amounts of all three primaries do not define a standard tertiary colour. Therefore, option B is correct.

On the traditional colour wheel, red is a primary colour and orange is the adjacent secondary colour. Mixing equal amounts of these two neighbouring colours produces red-orange, a warm tertiary colour, so option C is correct. Yellow-orange requires yellow mixed with orange; red-violet requires red with violet; and blue-green requires blue with green. The equal quantity wording indicates a balanced version of the named tertiary mixture rather than one colour dominating the result.

Yellow-orange is a tertiary colour formed by combining yellow, a primary colour, with orange, a neighbouring secondary colour. Therefore, option A gives the required mixture. Yellow and green would make yellow-green, while blue and violet make blue-violet. Red and green are complementary rather than an adjacent primary-secondary pair, so they generally produce a dull or neutral pigment mixture instead of the named tertiary colour. The colour-wheel relationship confirms the answer.

Yellow-green is made by mixing yellow, a primary colour, with green, a neighbouring secondary colour on the traditional colour wheel. Thus option C is correct. The names of many tertiary colours help identify their component pair: blue and green produce blue-green, red and orange produce red-orange, and red with violet produces red-violet. Therefore, option A is not correct because it makes blue-green, not yellow-green.

Blue-green is a tertiary colour formed by mixing blue, a primary colour, with green, an adjacent secondary colour. Consequently, option B is correct. The other pairs form different tertiary colours: yellow and orange make yellow-orange, red and violet make red-violet, and yellow and green make yellow-green. The governing colour-wheel rule is that the component primary and secondary colours must be neighbouring; merely choosing two colours with a similar appearance is not enough.

Blue-violet is a tertiary colour made by mixing the primary colour blue with the adjacent secondary colour violet on the colour wheel. Therefore, option A is correct. Green and yellow produce yellow-green, red and orange produce red-orange, and yellow and orange produce yellow-orange. The word order in the colour name is not a random label: it indicates the neighbouring primary and secondary colours that are combined to create the intermediate hue.

Red-violet is a tertiary colour produced by mixing red, a primary colour, with violet, the adjacent secondary colour on the traditional colour wheel. Hence option C is correct. Red and orange produce red-orange, blue and violet produce blue-violet, and yellow and green produce yellow-green. The adjacent primary-secondary relationship is the governing concept, so a pair is correct only when its two colours occupy neighbouring positions and correspond to the named intermediate hue.

The governing concept is the difference between a tint and a shade. A tint is produced by adding white to a hue, so mixing white with yellow-orange makes a lighter version of the same colour. Therefore, option A is correct. Black would produce a darker shade, while blue or green would alter the hue and may reduce its clarity rather than simply making a light tint. The key rule is: tint equals colour plus white.

The governing concept is reproducibility in colour mixing. A written ratio records how much of each paint was used, such as two parts yellow-orange to one part red. If the same mixture is needed later, the artist can repeat that proportion instead of relying on memory or guesswork. Therefore, option B is correct. Recording a ratio does not change drying time, brush softness, or the colour category; it only makes the result easier to recreate consistently.

The governing concept is warm colour harmony and gradual progression around the warm side of the colour wheel. Red, red-orange, orange, and yellow-orange are visually warm and can be arranged in a smooth sequence from deeper red toward brighter yellow-orange, which suits the glowing appearance of a sunset. Therefore, option A is correct. The other groups are mainly cool or mixed hues, so they would not create the same warm sunset progression.

The governing concept is tertiary-colour formation: a tertiary colour is produced by combining a primary colour with a neighbouring secondary colour. Orange is mixed with yellow to make yellow-orange, whereas orange is mixed with red to make red-orange. Therefore, the primary colour added to orange determines the visible difference. Paper thickness, brush length, and water temperature do not define the hue itself, so option C is correct.

The governing concept is colour bias in a mixture. Yellow-green is made from yellow and green, so the final appearance depends on the relative amount of each component. If green is present in excess, its hue becomes dominant and the result shifts toward green. It would move toward yellow only when yellow had the larger influence. Red and violet are not the named components, so option A is correct.

The governing concept is component dominance in a tertiary mixture. Blue-violet lies between blue and violet on the colour wheel. Increasing the amount of violet increases violet’s influence, so the resulting hue moves closer to violet. It cannot logically shift toward green or yellow because those colours are not the components being increased, and red is not the correcting direction here. Hence option C is correct.

The governing concept is identifying a tertiary colour’s position from its name. Blue-green is made from blue and green, so it belongs in the interval between those two colours on the colour wheel. The interval between green and yellow is associated with yellow-green, while yellow-orange and red-violet belong elsewhere. Therefore, the misplaced colour should be moved between green and blue, making option C correct.