Are you colorblind having decreased ability to see color or differences in color?
I am not colorblind but I have met people who are. 
Achromatopsia is known as total color blindness
Wow! I never knew the name for it. I wonder how exactly people with Achromatopsia view the world?
It is very severe and I believe they see the world in shades of gray.  Work is in progress for gene therapy.
If gene therapy results in success, I believe that people with Achromatopsia will feel like it's a whole new world filled with brightness and beauty!
Gene therapy for color blindness
Gene therapy for color blindness is an experimental gene therapy aiming to convert congenitally colorblind individuals to trichromats by introducing a photopigment gene that they lack. Though partial color blindness is considered only a mild disability and is controversial whether it is even a disorder, it is a condition that affects many people, particularly males. Complete color blindness, or achromatopsia, is very rare but more severe. While never demonstrated in humans, animal studies have shown that it is possible to confer color vision by injecting a
Colour blind (disambiguation)
Colour blindness is the decreased ability to see color or differences in color.
Colour blind or Colour Blind may also refer to:
Vision.
- Achromatopsia, also known as total color blindness
- Color vision, color blindness in other species
Arts and entertainment.
- "Colour Blind" (play), by Kaul and Kalki Koechlin
Arts and entertainment Books.
- "Colorblind" (book), a 2010 book on racism by Nicholas Morris
- "Colour