The American spelling is color.
blue
I believe you are asking for the way to spell color/colour.
la couleur
The spelling of the color is "beige", a light tan or flesh tone.
You spell the color blue like so- BLUE.
colour
The American spelling is color.
Nothing, except the nationality of the writer. Americans spell it color and generally, British people spell it colour, with a U.
color
chunyanno
blue
The color (a violet shade) is spelled purple.
I believe you are asking for the way to spell color/colour.
Both spellings are correct. Most people in the United States spell it "color". Countries which use "British" spelling use "colour".
The artistic style, painting with tiny dots of color, is pointillism.
la couleur