blue vs Purple

Some examples from the web:

• Blue is the colour between violet and green on the optical spectrum of visible light. Human eyes perceive blue when observing light with a wavelength between ...
• blue community · news & events · artists · blog · discover blue · story of blue · technology & innovation · careers · support · product registration · service request  ...
• Blue Apron. 0. Delivery Schedule · Free Meals · On The Menu .... We can't wait to cook with you! Try Blue Apron today with no commitment. Skip or cancel any ...
• Check out all of our natural and healthy BLUE dog foods and treats ... and see how the ingredients in your dog or cat food brand compare to the ones in BLUE.

Some examples from the web:

• Something just beyond The Purple Door...
• But he set off, taking his big... Purple crayon...
• The Purple Man, he's taken the whole world.
• You're being controlled by the Purple Man.
• Purple Man, you have made a grave mistake.
• The world knows it was the Purple Man.
• I think you were fighting the Purple Man the whole time.
• Purple ink. That's why it looked like blood.
• Successful strike with September and Purple Haze today.
• Purple puss here seems to think we were trying to defeat him.
• Purple's such a pretty color.
• You must be feeling good, Mr. Purple Shirt.
• It tastes like... Purple in here.
• Purple's too peacocky, or...
• Word's gotten out about The Purple Door.
• My loins are Terminally Always The Color Purple for you.
• Code Blue, Purple Zone Room 406. 4th Floor.
• Purple cauliflower brings all the boys to the yard.
• I don't have Purple Doc Martens.
• You forgot to mention the Purple Rhinos.