When no color is added, the color is "neutral grey", "achromatic grey", or simply "grey". Images consisting wholly of black, white and greys are called monochrome, black-and-white, or greyscale.
Grey is an alternate spelling for the word gray, which is a color derived from mixing white and black. The word has also come to stand in for other mixtures as well.
"Gray" and "grey" are both correct spellings of the word for the neutral or achromatic color—a color “without color" between black and white, like a cloud-covered sky, ashes, or lead.
Many people confuse gray or grey when writing, but both are the correct spelling used throughout the English-speaking world. The color gray or grey may be used as an adjective, noun, or verb.
Grey vs Gray – What’s the difference? Learn their meaning, spelling variations, and correct usage with simple examples.
Gray and grey are both accepted spellings. Gray is more frequent in US English, while grey is preferred in Canada, the UK, and elsewhere.
GREY definition: 1. of the colour that is a mixture of black and white, the colour of rain clouds: 2. having hair…. Learn more.
From Middle English grey, from Old English grēġ (Anglian). The spelling grey reflects the Anglian vowel development, whereas the variant gray stems from the West Saxon form grǣġ (through Middle English gray).
The fundamental difference between “grey” and “gray” is that “gray” is the widely accepted version in American English, and “grey” is widely accepted in British English.
Grey vs. Gray: Which Is Correct and Why There Are Two Spellings