These are the four ancient element symbols for earth, air, fire and water. Each symbol is shown with a color associated with each element with a stylized background pertaining to each element.
The colors green and brown are often associated with the element earth.
Bright blue, white, yellow and gray are colors that apply to the element air.
Fire, like flames, is orange or red.
Blue is the color of water.
These symbols can found without the backgrounds in Earth, Air, Fire and Water Element Symbols.
They can also be found without background and without colors in Earth, Air, Fire and Water Symbols.