He sees blue best, but that is not enough
Blue is one of the colours a dog tells apart best, but colour is not what makes him pee there: what matters most is where you put PIPPI, because he chooses the spot based on his surroundings, his habits and his instinct. Colour helps him see it, and this rests on a fact: dogs have two-colour vision, which means they see blue and yellow well, while red and green turn into shades of olive yellow that are hard to tell apart.
Through his eyes the red sofa turns olive yellow, while PIPPI stays the only blue thing. That is why blue helps a puppy recognise it, and an understated colour is less unsettling for an adult dog set in his ways.
Blue and similar shades
Blue
Navy blue
Light blue
Lilac
Blue, Navy blue, Light blue, Lilac: the colours dogs tell apart best. Recommended especially for a puppy or a young male: in the right spot they add a signal he can see well. Blue on its own does not make him pee there.
Understated: White, Ivory, Pinky, Green
White
Ivory
Pinky
Green
To a dog, white stays white, ivory becomes a light cream and green a dull olive yellow, like the sofa in the photo: none of them stands out the way blue does. The choice for an adult dog who is already used to it. And because white and ivory are light, you can see straight away when it needs a rinse.
Colours on sale today: Navy blue, Light blue, Pinky, Ivory, Lilac, White, Blue, Green.
What kind of dog do you have?
On the product page we ask what kind of dog you have, and suggest a colour.