Contrast of Extension
Itten explored contrast of extension. Contrast of extension is based on proportions. It is lined to contrast by controlling the proportion of one colour relative to another. It is used to balance,or counter the balance of an image that is heavily weighted towards a single hue which means one colour. It can also be used to affect brightness or intensity of a hue. The following experiments explore the life of bananas and leaves once they have been picked from a tree and aged. The images explore at what stage they turn from healthy, vibrant green/yellow colours to brown, dull and lifeless.As the images progress and become older they tend to become less vibrant and appealing to the eye. This dramatically affects the yellow hues brightness and intensity. The idea behind the following images relates to controlling the proportion of the yellow which heavy weights the image, in relation to the other colours. The images also explore the differences between light and dark contrasts becoming strong via contrast of extension. The balance of the following images are affected by how much of the yellow is present in connection to the other colours such as brown. Yellow seems to stand then strongest out of all the colours shown even if there's just a small amount of it in comparison to the other tones within the images. Johannes Itten claims ‘Contrast of extension involves the relative areas of two or more colour patches. It is the contrast between much little, or great and small.’
Complementary Contrast
The contrast is formed by the juxtaposition of a colour wheel or perceptual opposites.Research claims that colours opposite each other on the colour wheel are considered to be complementary colours. The high contrast of complementary colours creates a vibrant look particularly when in full saturation. The following images show the complementary colours yellow and blue due to being across from each other on the colour wheel. This is shown through flowers in the colours yellow and blue forming high contrast, effective imagery against bold, block colour backgrounds. They also make the images vibrant and full of life. The images are also highly pleasing to the eye due to them being different colours, shaping different parts of the images clearly.
Contrast of Cool- Warm
Contrast of Cool- Warm
Research states that contrast is both physical and psychological. It is believed that some people perceive rooms to be cold purely due to the colour of the room. For instance a blue-green room is thought cold at 59 degrees, while a red-orange room isn't thought cold until 54 degrees. Research also mentions that juxtaposition affects warm and cold perception. The cold-warm contrast is best achieved with the colours orange-red and blue-green. All other colours appear cold or warm depending on their contrast with warmer or colder hues. Scientific studies have shown that cyan decreases the blood momentum, while red-orange stimulates it. Similar results were also obtained from animals. Contrast of cool- warm is also used in hospitals where colour therapy is used, the properties of cold and warm colours play a very important role. When exploring the colour wheel it is believed that we see yellow as the lightest colour and purple as the darkest.
The contrast of saturation
Itten claims that the contrast of saturation means a contrast is formed by the juxtaposition of light and dark values and their relative saturation.Itten also states ‘saturation, or quality, relates to the degree of purity of a colour'. Contrast of saturation is the contrast between pure, intense colours and dull,diluted colours. The following images show this via yellow fruit and vegetables. Within an image brightness is how much black and white is present within a hue. Alternatively saturation is how much grey in a colour affects the hue. If an image is 100% this means no additional grey hues have been added to it. Although if a hue is 0%saturation this means the hue will appear medium grey. The following images show different saturations of the colour yellow within the same object and within different objects. For example the lemons are the same but hold subtle, different saturations within each one. Whereas the peppers, sweetcorn, banana and lemon show the saturation in a stronger way due to all being different toned hues. This leads the saturation of the image to become stronger within it's intensity and purity of a hue.
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