In lang=en terms the difference between collar and colour
is that
collar is to roll up (beef or other meat) and bind it with string preparatory to cooking while
colour is to apply colours to the areas within the boundaries of a line drawing using coloured markers or crayons.
As nouns the difference between collar and colour
is that
collar is anything that encircles the neck while
colour is (
lb) the spectral composition of visible light.
As verbs the difference between collar and colour
is that
collar is to grab or seize by the collar or neck while
colour is to give something colour.
As an adjective colour is
conveying colour, as opposed to shades of grey.