The eyes of the left Ibaraki-doji appear to be white and yellow, while those of the right Ibaraki-doji appear to be blue and black, but their white and blue are the same color (R100, G100, B255) and their yellow and black are also the same color (R100, G100, B0).
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@AkiyoshiKitaoka I had to "prove it" to myself. So i used a business card with a small hole punched in it, to isolate the target colours, outside of their "context" background colours. It works, but it makes it more puzzling, in a way.