In art and design, tone refers to how light or dark something is. Tones could refer to black, white and the grey tones between. It could refer to how light or dark a colour appears. In real life ...

A tint is where an artist adds a colour to white ... black to a colour to darken it down. A tone is where an artist adds grey to a colour. Green Apples, Paul Cezanne, c.1872-73, oil on canvas, The ...