Not really because periwinkle is a blue-green and salmon is a red-orange-pink. Not the best. More like cat throw-up and water.
yes they go well together
Yes the colors orange and brown do go together
No a blue mussel can not be eaten by a periwinkle because periwinkle's only eat algae or they go with out food.
to me any bright colors will do
Those colors go together.
it colours that go together
bleu and green
Yes, they can, depending on what colors you like. But they can go together, and do not look to bad.
navy blue
purple and blue
Colours that clash, don't go together
Periwinkle is more purple than any color. Another answer: Periwinkle is a shade of deep blue found in the colour of flowers called Periwinkles (Vinca major and Vinca minor). See also related link.
blue