Artificial dyes made using chemicals and are thus regulated by the Food and Drug Administration to ensure their safety. But ...

In the past, when literacy rates in India were low, Indian Railways gave these symbols and colours so all the passengers can understand different coaches' alignment.

"When you combine red and yellow it’s about speed, quickness. In, eat and out again. "Yellow is also the most visible colour ...

The Minns government recently announced councils would be rolling out mandatory food organics garden organics (FOGO) bins to every household in NSW.

You can use a prism to split (or disperse) white light into a spectrum of colours: red, orange, yellow, green, blue, indigo and violet. Dispersed means that the colours are separated out.