Colour Blind// Not being able to see a certain set of colours. Most commonly Yellow/red/orange, others do exist. No sense of colour, only being able to see the grey scale, can be caused from great depression, severe head trauma, or a genetic/ birth defect. The chance of this extreme colour blindness is 1:100. Dan Howell is that one.

"Dad, what is love?" "Iris honey, it is when you see color."