well if your talking about hair, painful process get your hair virtually white with bleach an a cool based toner or violet repeat that till it's white the use an ash grey toner for better results use a dark ash grey toner rinse do it again keep it on for three hours wash off good to go.
Use a green and a little bit of gray.
it depends a little white and a lot of black makes dark gray a lot of white and a little black makes light gray overall just gray
The opposite to gray is gray dark gray is light gray ;)
Black and grey mixed together makes really dark ash like grey.
Gunmetal-gray is considered a dark color. It is a shade of gray that has a slightly metallic finish, giving it a darker and cooler tone.
Dark gray.
Gray is said to be dark and dismal as in gloomy gray skies
Dark gray to dark brown.
Green (very dark green) or Gray ( very dark gray)
Tantalum is a gray, blue-gray, or dark gray metallic element.
Gray dark gray white black red
Dark gray can be achieved by mixing black and white together. Start with a base of black paint and gradually mix in small amounts of white until you achieve the desired shade of dark gray.