I lost consciousness temporarily.
Black sheep is black sheep.
Have a surplus.
A bolt from the blue
Blue-eyed boy's favorite person
Look/feel blue unhappy.
His face was purple and he was panting.
Once in a blue moon; Rarely; first time
Being browned off is listless, which means upset and depressed.
No color, boring; Not irritating; formalistic
You don't look well
Give/add color to make it look possible; Speak as if it were true; oil; fuel charging; make a greater effort
It is very good to finish the task well; have excellent grades
Draw in bright [dark] colors; Praise [belittle]
going green and environmental protection
Jealousy, jealousy, jealousy
It means to give someone a green light and indulge someone.
The grass on the other side is always greener, which means that what you can't get always looks more attractive and always better than what you already have.
Green belt (around the city)
Gold handshake (a large sum) severance payment
Golden Boy
Very happy; I am very happy.
Heavily in debt; deficit
Catch someone red-handed.
Wear colored glasses to see the problem.
See red lost his temper; very angry/as mad as a wet hen
Red tape; red-tapism
When you see a red light, you feel that danger is approaching.
Carnival, drinking all night.
The red carpet was warmly welcomed and received.
Redneck (a country bumpkin with little education and conservative political views in the United States), a farmer, a man with a red neck.
Screen film industry
As white as paper
White elephants are expensive and useless.
A white lie, especially to avoid hurting others' feelings, a white lie