THE COLOUR OF OBJECTS

When light rays reach an object, this object absorbs some of the light and reflects some of it.
The reflected light enters our eyes.
An object always reflects its own colour.
White objects reflect all light.
This means they do not absorb any light.
Black objects absorb all light.
This means they do not reflect any light.

Colours. Picture from Stevopia

PRIMARY COLOURS OF LIGHT

The primary colours of light are red, green and blue.
When we mix the primary colours of light, we create new colours.
When we combine the three primary colours of light, we create white light.

The primary colours of light. Photo from Paul Nulty