Yellow is one of the three colours in the lower half of the visible spectrum It is known as a "warm" colour and has a stimulating effect. It is the colour of the intellect and instills optimism, energy and creative thoughts.

Yellow stimulates the nervous system and mental processes.  It assists memory function and encourages communication and study. Yellow relates to the area of the ego, and self-confidence.

Yellow is psychologically the happiest colour in the colour spectrum. It stands for happiness and joy but on the other hand it is also the colour of cowardice and deceit.

Yellow is the colour of the Solar Plexus Chakra, located in the stomach area below the ribs It is linked to the stomach, liver, skin, large intestine, muscular system, the solar plexus area and the pancreas.

Gemstones that will aid the Solar Plexus Chakra include amber and citrine.

Other yellow stones are: Amber, Calcite, Cat's Eye, Citrine, Fluorite, Golden Beryl, Golden Yellow Topaz, Golden Tiger Eye, Iron Pyrite, Lemon Chrysoprase, Yellow Celestite, Yellow Danburite, Yellow Garnet, Yellow Jade, Yellow Jasper, Yellow Kunzite, Yellow Muscovite, Yellow Rhodonite, Yellow Sapphire, Yellow Tourmaline.

Yellow in Cultural Traditions

In western societies yellow ribbons are used to welcome loved ones home.

In China, yellow was the colour of the emperors during the Ming and the Qing dynasty.

For Hindus, yellow is a sacred colour.

In Egypt it is the colour of mourning.

In Japan Yellow represented courage.

Actors in the Middle Ages wore yellow to represent the dead.

In the garden, yellow's complimentary colour is purple.

 Shades of Yellow

Lemon, yellow ochre, golden, saffron, cream, topaz, mellow yellow.

 Common expressions using the colour YELLOW

Mellow yellow - laid back, relaxation.

Yellowdog contract - a contract which denies a person the right to join a worker's union.

Yellow ribbon - hope, support, remembrance.

Yellow streak or Yellow-bellied - cowardice or coward.

Yellow journalism - irresponsible reporting.