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Tag Archives: colour
Plug wiring colour scheme
UK plugs use brown insulation for the live wire, blue insulation for the neutral wire and green with yellow stripes insulation for the earth wire. But why this particular combination of colours? The answer is deceptively simple: there is no type … Continue reading
Tagged colour, electricity, plug, safety
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Colour blindness
Following on from an earlier post about the human eye’s inability to see the colour blue in detail, I’m taking a look at colour blindness. I’ll be using this test image of a forest and rainbow throughout. The two most … Continue reading
Tagged colour, perception, vision
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Your eyes are not good at seeing blue
Here is a image of the Bangkok skyline. Here is the same image with the red, green and blue components shown separately. Notice how white objects are bright in all three components, how the green park on the right of the … Continue reading
Colour-coding the election
The two main political parties in the UK are traditionally associated with two of the primary colours of light: red (Labour) and blue (Conservative). I wondered what would happen if I associated the remaining colour, green, with the remaining political parties. … Continue reading
Tagged colour, election
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Colour Cube
The colour cube is a clever way of showing all the colours possible in the RGB colour space that computer monitors use; in which the three axes of the cube are assigned to the three primary colours of light: red, … Continue reading
Tagged colour
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