Saturation can be simplified as being colourfulness. A purely saturated red would be a very bright red, solid in its own colour. Without much saturation, it would be closer to monochrome (or black and white).
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| Bomb |
Without saturation, we can't determine hue, and without hue, we can't see colour. How could you disarm this bomb even if I told you the green wire needed to be cut? It would be improbable, and you'd have to guess which one to cut.
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| Fish (Edited Saturation) |
In a less extreme example, we see that lowered saturation makes colour look more dull. It does not destroy the colour however. We can still consider this fish to be gold even after heavily editing the saturation. It would be wrong to say the fish on the right is darker, but you can say it has less colour.
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