Human sight reduces all visible light down to the three red/green/blue buckets. Other species will have different buckets, and can easily see colors we perceive as identical as completely different.
I believe we have better color vision that most animals though, so the opposite is usually the case.
EDIT: Here's the reported anecdote I was remembering:
> "I have always had polite disagreements with people about shades of colours," she says. When clothes shopping for instance, she often finds that apparently matching tops and skirts seem to be a different shade to her, clashing horribly--even though no one else seems to notice it. Her sensitivity can sometimes be baffling to those around: when helping to restore a house, she once rejected 32 paint samples before settling on the right shade. "The beiges were too yellow and not blue enough, not cool enough; some of the almonds were too orangey," she says--distinctions that were much to the confusion of her building contractor.
https://www.bbc.com/future/article/20140905-the-women-with-s...
Another species could have the exact same "buckets" configuration and perceive color differently if the ganglionic layer is connected differently to those buckets.
Visualization of this: https://imgr.search.brave.com/OsaL9Hps1NYNjbK4zhGnStZmlMNT3t...
My thinking is this could affect visual cues for e.g. training.