Annex B-Research Data


White is the color the human eye sees when it senses light which contains all the wavelengths of the visible spectrum. This light stimulates all three types of color sensitive cone cells in the eye in nearly equal amounts. Materials that do not emit light themselves appear white if their surfaces reflect back most of the light that strikes them. (Wikipedia,White)


Red is the color at the end of the spectrum of visible light next to orange and opposite violet. It is evoked by light with a predominant wavelength of roughly 620–740 nm. Red is one of the additive primary colors of light, along with green and blue, which in RGB color systems are combined to create all the colors on a computer monitor or television screen. It is also one of the subtractive primary colors, along with yellow and blue, of the RYB color space and traditional color wheel used by painters and artists. (Wikipedia,Red)


Green is a color on the spectrum of visible light, located between blue and yellow. It is evoked by light with a predominant wavelength of roughly 495–570 nm. In the subtractive color system, used in painting and color printing, it is created by a combination of yellow and blue, or yellow and cyan; in the RGB colour model, used on television and computer screens, it is one of the additive primary colors, along with red and blue, which are mixed in different combinations to create all other colors.(Wikipedia,Green)

Blue is the colour between violet and green on the optical spectrum of visible light. Human eyes perceive blue when observing light with a wavelength between 450 and 495 nanometres. Blues with a higher frequency and thus a shorter wavelength gradually look more violet, while those with a lower frequency and a longer wavelength gradually appear more green. Pure blue, in the middle, has a wavelength of 470 nanometres. In painting and traditional colour theory, blue is one of the three primary colours of pigments, along with red and yellow, which can be mixed to form a wide gamut of colours. Red and blue mixed together form violet, blue and yellow together form green. Blue is also a primary colour in the RGB color model, used to create all the colors on the screen of a television or computer monitor. (Wikipedia,Blue)


In optics, orange is the colour seen by the eye when looking at light with a wavelength between approximately 585–620 nm. It has a hue of 30° in HSV colour space.In the traditional colour wheel used by painters, orange is the range of colours between red and yellow, and painters can obtain orange simply by mixing red and yellow in various proportions; though these colours will never be as vivid as a pure orange pigmentIn the RGB colour model, the system used to create colours on a television or computer screen, orange is made by combining high intensity red light with a lower intensity green light, and the blue light turned off. Orange is a tertiary colour numerically halfway between gamma-compressed red and yellow, as can be seen in the RGB colour wheel. (Wikipedia,Orange)

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