how do you get the colour white as you start with only blue yellow and red how can you make white out off them the

Question: how do you get the colour white as you start with only blue yellow and red how can you make white out off them the closest is black .
- Keywords:
  colour,
  light
Asked by 11ebourne to Ben, Dave, Ed, Sam, Susana on 21 Jun 2013.
- Sam Horrell answered on 21 Jun 2013:
  
  From what i remember if you just keep mixing colours it always seems to end up a horrible sort of brown colour.
  
  Although the colour white is the presence of all the colours of light in the visible light spectrum, mixing of paints doesn’t work in the same way. The white paint will reflect all of the visible light whereas the red paint will only reflect the red. Mix red and yellow paint and it will then reflect the orange spectrum in between yellow and red. There’s no mix of coloured paints that will make all of the colours reflect to give white. Unless you just keep adding white paint until it overpowers the other colours, but even then it will probably have a hint of colour in it.
- David Briggs answered on 23 Jun 2013:
  
  You can’t get white if you just mix coloured paint – you just get a dark sludge-y brown.
  
  However – White LIGHT is a mixture of different types of light – this was first shown by Sir Issac Newton in the 1600s.

Question: how do you get the colour white as you start with only blue yellow and red how can you make white out off them the closest is black .