It’s not really as black and white as your post suggests! Here’s a starting point…
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The ancient Greeks didn’t have a word for blue, but in Persian there are two. Isn’t women possibly seeing more colours to do with having 2 X chromosomes, where the main genes that code for colour perception are located, so depending on which one is switched on in particular cells in your retina you’ll see more?
Well in the pink v orange stakes and taking the varieties of pink together I make that 9 to 0 in favour of pink. 
Although I get along with Gill very well these days and there is no doubt that, due to her nursing experience, she is the most efficient of them all, I am hesitating about showing her the outcome of this thread.
She still has a great skill in the argueing black is white stakes and I really do need her in a good frame of mind to makes sure we pack everything Fran can possibly need.
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This is interesting too. Do We Perceive Colors Differently Depending on the Language We Speak? - Neuroscience News.
Haven’t got time to read it all @_Brian but I can tell you that that paint in the tin is very definitely BLUE 
PS. Correction duly made to the silly mistake in the title and at least once in the text, are there others? 
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And I thought I was being subtle…
Not the same as the Ishihara test
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Interestingly (to me anyway), at my last opthalamo appointment i was given a box of coloured blocks and had to order them according to colour. A fun thing to do, even if I’m not sure it told them much.
I may be presbyopic, myopic, astigmatic and have amblyopia but my colour vision is more-or-less spot on
It’s pink Not enough orange in it to quite veer to salmon or coral.
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Colour vision is complex and relies on multiple cues from the environment - so different colours can take on different interpretations depending on the environment around them.
FWIW I’d call the blouse coral pink - the colour that I perceive depends on the illumination, the accuracy and colour space of David’s camera (unspecified), the accuracy and colour space of my monitor and the ambient illumination here.
Some other colour conundrums:
Which square is the lighter colour, A or B?
What colour are the “stripes” in this window - orange or pink?
Which is darker, the middle square on top of this Rubik’s cube or the middle square facing you?
A picture of red strawberries?
Colour is the visual perception based on the electromagnetic spectrum. Though color is not an inherent property of matter, colour perception is related to an object’s light absorption, reflection, emission spectra and interference .
Any colour you like (massively underrated)
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It is true, women have a broader spectrum than men
Ha ha, black and white. Try going on a colour course for a top gun in spectrum colour choice in the USA. Then choose the thousand colours between say pink and rose and put them in order of colour tone. Little bit difficult I would think…
I wouldn’t argue with anyone on here quoting internet sources but I do think it might be a bit more complex.
who knows what colours anyone sees but call them what we expect?
Quite true - I have no idea whether I see “red”, for example in the same way that you or anyone else does.
However that’s probably academic if we both agree that light of about 700nm wavelength is “red”.
oh bb, semantics… I think us normal people can agree what we see (or not). If you want to get into this I will put my husband on it but he really wouldn’t want to do that having had this conversation multiple times over the decades.
Besides who can “agree that light of about 700m wavelength is 'red” when we both agree that nobody agrees whether what you see is red compared with anyone else as you said
lol
Don’t think anybody can solve this equation
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But we do agree just that fact (as you seem to start out by saying)…
At the risk of adding confusion there’s an experiment which takes a bike and adds gearing to the handlebars such that when you turn the handlebars one way the front wheel turns the other.
For people used to conventional bikes it is nearly impossible to ride such a bike but with practice they can be ridden just as well as a normal bike. Indeed for people who have never ridden a normal bike they are no harder to learn.
If you have two people - one riding a regular bike and one riding one of these odd reverse steering bikes and shout “turn right” to them they will turn their handlebars in opposite directions - but they will both turn the bike to the right.
So with colour - if we both learn that the label “red” applies to light of a specific wavelength, it does not matter what our internal perception is, just as long as we agree the labelling.
For the avoidance of doubt I’m talking about people with normal colour vision. Clearly someone who is red-green colour blind might see a green object and (mistakenly) label it red, that’s expressly NOT what I am talking about.
But is that pink salmon or red salmon?
@billybutcher
They are all the same colour and the strawberries are a phantom colour based on contrast 
I think
I have the same weird vision as you do
