In many document and photo editing software, it is possible to customize the colours of various aspects of design such as type fonts and background colours. The interface for this customization usually consists of three sliders or text boxes where you can enter the "value" of red, green, and blue colour that you want to use to create the custom colour. Assuming that the value for each colour is an integer from $0$ to $255,$ which of the following is correct?

Question $21$ options:

black $=(128,128,128)$; white $=(255,255,255).$

black $=(255,255,255)$; white $=(0,0,0).$

black $=(0,0,0)$; white $=(255,255,255).$

black $=(255,255,255)$; white $=(128,128,128).$