This is Green Dog, a plaster model made by my niece over thirty years ago when she was six or seven. Why is it green? Because her father, my brother, helped paint it. Like me, he had protanopia. He would have thought it was brown. He died when my niece was eight.
Protanopics have difficulty distinguishing browns from greens because we do not detect all of the red component of brown. For the same reason, orange is sometimes seen as yellow or light green because the red component of orange is weak. Red poppies fail to shine out from fields of green, and red fuchia flowers look nearly the same as the leaves. Purple and mauve look blue. Our ginger and white cat is delightfully camouflaged against the lawn, especially if there are snow patches. I’d be completely stuffed if there was a tiger in the garden.
Green Dog looks quite normal to me. I only know it is green rather than brown because someone told me, and because I ran samples of the head colour through Name That Colour (https://chir.ag/projects/name-that-color/#55642B) which identifies it as a mixture of browny-gray-greens with fancy names like “Woodland”, “Kelp” and “Verdigris”.
On the bottom my niece wrote “To Grandpa from C---”, with four hearts and five kisses. My dad kept it for his last fifteen years, after which my daughter had it as a reminder of her grandpa. It has been neglected and ignored since long before she went to university.
Recently, it was my niece’s birthday. She has reached an age at which she has been of this world for longer than her father was. We packaged up Green Dog and posted it off to her with a note explaining that he (?) had been feeling lonely and rejected and thought he would be better looked after back in Sussex where he was born, in a house with three lively children – three grandchildren my brother never knew.
My niece had no memory of it. She had to decipher her own writing on the bottom to work out what it is. It is now in her display cabinet. There is a three in four chance that one or both of her sons will see is as a normal brown dog too.