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Thread: what color mix for brown?

  1. #1
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    Default what color mix for brown?

    My projector displays what should be brown as more of a redish tint, ie flying eagle looks more red than brown. What color combination makes the brown?
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  2. #2
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    Dont think you can make Brown with primary colours like Red, Green & Blue.

    I imagine you would need exotic colour lasers like Orange, Purple etc to get a true Brown

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    Hey polishedball

    You can make brown using an equal level (say 50%) Blue and Green with a high amount of red (80-100%)

    Using an online color picker (http://www.colorpicker.com) you can get a idea of levels between colors (however not sure how well this relates to lasers and remember the values relate to bits)

    Dont think you can make Brown with primary colours like Red, Green & Blue.
    Last time I looked my LCD TV could produce brown
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  4. #4
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    Pangolin used to have a little chart some where for the "hard to make" colors, brown is, saturated red with a dash of blue and a skosh of green.

    I've seen silver, gold, and other difficult colors, but those are all back in ion laser days.

    Steve
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    Quote Originally Posted by loopee View Post
    Hey polishedball
    Last time I looked my LCD TV could produce brown
    I think that is mainly due to background compensation (difficult with lasers).

    I bet if you coloured the entire LCD screen and turned up the contrast to max, it would be a much less convincing brown.

    Try changing screen colour (paint a wall). That might help!

    Maybe if you mixed in a little "black" ! LOL


    Cheers

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    Quote Originally Posted by mixedgas View Post
    Pangolin used to have a little chart some where for the "hard to make" colors, brown is, saturated red with a dash of blue and a skosh of green.

    I've seen silver, gold, and other difficult colors, but those are all back in ion laser days.

    Steve
    Silver on a white screen must have been really tricky!

    What was it ? Speckly grey (a spot of everything) with a smidgen of strobed black ?

    Gold is great with a dye laser !

    I am afraid that the mixedgas recipe, suggested below, is about as close to brown as you are ever going to get without adding a few more colour sources to your projector.

    Cheers
    Last edited by catalanjo; 09-12-2010 at 07:36. Reason: booze again

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    [QUOTE=catalanjo;162803]Silver on a white screen must have been really tricky!

    What was it ? Speckly grey (a spot of everything) with a smidgen of strobed black ?

    No 575 or 568 in modern projector, so no silver. But I have seen near gold lately with 640,532, and 445.

    silver is yellow + blue + small amount of green.
    Steve
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    [QUOTE=mixedgas;162815]
    Quote Originally Posted by catalanjo View Post
    Silver on a white screen must have been really tricky!

    What was it ? Speckly grey (a spot of everything) with a smidgen of strobed black ?

    No 575 or 568 in modern projector, so no silver. But I have seen near gold lately with 640,532, and 445.

    silver is yellow + blue + small amount of green.
    Steve
    Question:

    Is yellow here really yellow (CuBr style),KryptonBB (wobbling with red), or lemony Argon?

    Cheers

  9. #9
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    Don't know is that is brown to your eyes, but I guess this is the browner color you can create with 640+532+445nm...



    Here you get also some "goldish" color to the right


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