Investigation of the Statement in Colour Psychology by Carl Jung

1. Light and colour can influence how people perceive the area around them. Different light sources affect how the colours of walls and other objects are seen.
This entire universe is darkness, it needs light from the sun to light the things we see, without the sun and light, the world probably would never exist, or it exists in the darkness that nothing can be perceived or seen,  therefore darkness is not considered as a colour. Light is the main element we need to help we see, visualise and perceive by our eyes, without light, there'll be no such thing called "colour" different light source changes the colour itself and to prove this theory, I will conduct a practical research to experiment through photography and provide evidences.

In this experiment, I photographed the changes of colour on the wall in different situations; to prove the first statement, I have chosen to use three different sources of light: home lamp, flash light and natural sun light. The colour of wall involved in this experiment is white colour; and now let's see how the colour of wall changes under different light sources below.

Figure 1

Figure 1 is a photograph taken using home lamp, and the colour of wall appears to be orange, brown or yellowish under home lamp light source.

Figure 2

Figure 2 is a photograph taken using flash light, the wall appears to have two very contrasted colours, black (the shadow of the lamp) and white (the flashed area on the wall) and the tones of the wall colour gets darker which has the "vintage" kind of look.

Figure 3

Figure 3 is a photograph taken using natural sunlight, the colour of the wall stays its own colour-white, although colour changes through different moods of sunlight (such as cloudy weather) 

2. Specific hues of colours seen under natural light may vary when seen under the light from an incandescent (tungsten) light bulb: lighter colours may appear to be more orange or "brownish" and darker colours may appear even darker.
To prove this theory, I will also conduct an experiment by using photography to provide evidences for this statement. In this experiment I plan to photograph the colour change in both black and white coloured dress-up by using different light sources: home lamp and natural sunlight.

Figure 4

Figure 5

 Figure 4 is taken by using home lamp, and the black top colour appears darker and figure 5 was taken by using natural sunlight, and the black top appears to be black and emphasises its own colour.

Figure 6

Figure 7

Figure 6 is taken by using a home lamp, the white coloured top appears to be orange and brownish, but when it's taken under natural sunlight in figure 7, the white colour appears to be its own colour.

3. Light and the colour of an object can affect how one perceives its positioning. If light or shadow, or the colour of the object, masks an object's true contour (outline of a figure) it can appear to be shaped differently from reality.
To help to prove this theory, I photographed using 2 different light condition: when there is low amount of light source such as home lamp at night, and when there is enough light source to see more in the image such as flash light; then I compared and contrasted the two photographs that I've taken and analysed the difference between these 2 photographs.

Figure 8

Figure 8 was taken in a low light condition by using home lamp at night; in this photograph, the shape of a profile appears to be a line that contours the subject. 

Figure 9

Figure 9 was taken in a flash light condition where enough light was provided into this photograph, and the shape and the contour of the subject looks so much different that figure 9 is able to be seen the reality of the subject's profile involved being able to see his eye, nose, lips and ears etc.

4. Objects under a uniform light source will promote better impression of three-dimensional shape.

When light covers the entire object around it, then the less shadow we see, when light covers on the right side of an object, then that object's shadow will appear on its left side. But when an object's covered by light all over, there will be no shadow from the object. To provide evidence, I planned to take photographs of a box under different light source: uniform light and others. 

Figure 10

 Figure 10 was taken by using the incandescent light to be the uniform light, the box in this photograph has less shadow and appears to be more three-dimensional than figure 11.

Figure 11

Figure 11 was taken under the natural sunlight coming from the balcony, the box in this photograph has more shadow than figure 11 as the lights shoots from the balcony and makes the other side have its own shadow. When there is shadow, it is darkness and the darkness is harder to be seen than the lightness. 

Take a look at figure 12, where the flash light exposed too much on the right side of the lamp and makes itself disappear in the brightness of the flashlight, but on the other side of the lamp appears so much darker than the right side and very contrasted between each sides. This is when an object under a NOT uniform light source would appear to be - loose of its own three-dimensional visibility.

When the light has different coloured filters, it changes all the colours of the objects that are involved in the range of the light. For example in figure 13, it is a photograph taken in a room where was covered by purple and red coloured curtains, when light shoots directly through the coloured curtains, the curtain will be a sort of filter for the natural sunlight; the colour of the room filtered by the purple and red curtains appears to have its hues to be red and pink -ish. 

Figure 12

Figure 13

5. The colour of an object may affect whether or not it seems to be in motion.
A lot of optical illusion designed work were playing with colours to make the work itself look like it's in motion, optical illusion designed work is also the matter of shapes, lines and other supporting factors to give itself the "motion look" I have experimented with using different mixed colours to explore what kind of colours together  have the motion look.

Figure 14

Figure 15

Figure 14 and figure 15 were both designed by using the type of colour harmony - triad. Triad is the harmony that three colours evenly spaced 120 degree around the colour wheel, the base colour was the yellow colour in figure 14 and 15. 120 degree from the base colour, there were the blue colour in figure 14 and the purple/pink colour in figure 15. The outlook of these colour mixes appear quite of "illusional"

Figure 16

Figure 16 is designed by using the type of colour harmony - complementary. Complementary is the harmony that is opposite on the base colour on the colour wheel. The outlook of this colour mix appears a bit of "illusional"

Figure 17

Figure 18

Figure 17 was designed by the most contrasted colours: black and white/ darkness and lightness. They appear quite "illusional". Figure 18 used a quite bright colour to fill up the white, and the outlook of the "illusional" might have reduced a little from using the mix of black and white.

Figure 19

Figure 20

Figure 19 and 20 used the type of colour harmony - analogous which are the neighbours of the base colour on the colour wheel. The outlook of using analogous harmony is barely hard to see the illusion in the image which reduced a lot of its motion look.

From this experiment, I discovered that when mix two or tree very contrasted colours, it always contains the look of "motion" optical illusion, but when using analogous mix of colour, it may not appear as "illusional" as the very contrasted, bright, energetic colour mixes.