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Author Topic: Is black a colour?  (Read 417 times)

Offline thedoc

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Is black a colour?
« on: 06/10/2016 10:21:32 »
Hi. Is black really a colour ? Or just the absence of light ? (visible light)
Asked by Martin


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 ...or Listen to the Answer or [download as MP3]

« Last Edit: 06/10/2016 10:21:32 by _system »


 

Offline neilep

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Re: Is black a colour?
« Reply #1 on: 20/09/2016 11:38:20 »
hmmmm.. i always thought black AND white were deemed not true colours and that black, as stated above, is the absence of the absorption of light.....which, i guess could well be assigned to as a colour  !

Lets hope a passing Colourologist provides some assistance here !
 

Offline evan_au

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Re: Is black a colour?
« Reply #2 on: 20/09/2016 11:38:57 »
Black is the absence of visible light.
Adding any visible wavelengths to the light entering your eyes makes it non-black.

...and when they said "Orange is the new black", they weren't physicists saying it!
 

Offline PmbPhy

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Re: Is black a colour?
« Reply #3 on: 20/09/2016 15:02:54 »
Martin asked the Naked Scientists:
   Hi. Is black really a colour ? Or just the absence of light ? (visable light)
What do you think?
As stated above black is not a color but the absence of all light, i.e. the absence of color. White is a bit harder to say if it's a color. White light is a composed of a spectrum of other colors. That said, when a car dealer asks me what color I want my new car to be I'll always say "black." :)
 
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Offline syhprum

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Re: Is black a colour?
« Reply #4 on: 20/09/2016 19:17:38 »
In the 4 colour printing process 4 colour separations are produced Y,C,M,K(black)  and the black separation is printed with black ink and referred to as one of the 4 colours
 

Offline mrsmith2211

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Re: Is black a colour?
« Reply #5 on: 21/09/2016 00:14:36 »
In light the absence of all colors is black, in paint the presence of all colors is black, you decide.
 

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Re: Is black a colour?
« Reply #5 on: 21/09/2016 00:14:36 »

 

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