↗
It’s the dress part two!
I make this decision as much on the basis of what I think I know about tennis balls—that they are yellow—as I do on what color I recall that they looked when I last saw one… In other words, like the color of a lot of objects, how we label [a tennis ball] is determined both by perceptual and cognitive factors: the actual physical light entering your eye and … knowledge about what people have typically labeled the objects.
I have to say, it never occurred to me that a tennis ball might be any colour other than yellow.
This is great! I have fairly severe red/green colourblindness, and after 32 years still occasionally find myself dumb-struck by someone pointing out that something’s a different colour to what I always thought it was! This is a great way for other people to experience and “enjoy” that feeling! (And I’ve never thought of them as anything other than yellow either!)
Thanks for the comment Simon. Great point about colourblindness as well. Colour perception is interesting stuff.