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People with "normal" color vision don't see the full available spectrum of waves either. The visible light is only a relatively narrow section. Ultra-violet or infra-red "colors" are undetectable for humans. Unless of course we consider being able to get a tan from UV light or heat up from the warmth of infra-red as detection, color blindness very rarely means that we can’t see any color at all, or that people see things in grayscale. It’s actually a decreased ability to see color, or a decreased ability to tell colors apart from one another, color blindness is a sex-linked trait and it’s much more common in men than in women. The most common type of color blindness is called deuteranomaly which occurs in 7% of males, but only 0.5% of females. Color blindness can be a real drawback for anyone in the design field since color theory is an integral feature in successful design, and a lot of decisions are based on the feeling and emotion derived from design decisions, rather than a generic set of guidelines and taxonomies, it's important to cater for the widest audience, who could potentially have problems with our website if not designed in the right way, but the main aim of this paper is actually looking at how non-sufferers web designers can still take into account the needs of their color blind audience, and we look for a clearly distinguishable of hues of five colors (black, red, green, blue and yellow) which are frequently used in these circumstances. Red-Green confusion people don’t confuse all kinds of red and all kinds of green . By selecting particular hues for each color, the ability to distinguish between the five colors should be greatly improved. The study thus conclude that, by carefully selecting hues within the range of each color category, it’s possible to establish color combinations which are easily distinguishable to people of all color vision types in order to facilitate visual communication.
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