Color

Visual perception resulting from light reflection or emission.

colour

/ˈkʌlər/

From Old French 'color', from Latin 'color'.

Color is what we see when light bounces off things, like how a red apple looks red because it reflects red light.

What is color? It's a visual perception caused by different wavelengths of light
How do we see colors? Our eyes have special cells that detect these wavelengths and send signals to our brain
Why are some things different colors? Different materials absorb and reflect light differently

colour shade

perception visual sensation

red green blue

natural phenomenon perceptual characteristic