"made of yellow" is correct and usable in written English.
You can use this phrase when referring to something that is primarily yellow in color. For example, "The dress was made of yellow silk."
Lion has pink leggings and a mane made of yellow Marigolds.
One wore a traditional Russian bathing cap made of yellow felt.
The two products were made of yellow corn from the same mill, run by Azteca Milling in Plainview, Tex.
A male, also in black, swivels to watch her; his features, made of yellow toilet paper rolls, begin to tremble.
Over at Athena, on East 31st Street, there is a 120-degree igloo made of yellow soil, or hwangto; the soil is supposedly an energy source.
But the piece that caught my fancy was "Short Environment," which was basically a body-size condom made of yellow vegetable fiber.
The Colonial-style home, made of yellow-painted wood and green doors and shutters, was built by Dr. Daniel Butler and his wife, Sarah Sheldon Butler.
The bricks of the segmental arches are made of yellow-red clay, mixed with fine brick fragments.
Each wore a costume made of pale-yellow latex; yellow-and-green fake fur accented Riener's neck and Mitchell's ankles, as well as a panel on Kresge's back.
The minaret is made of hard yellow brick.
First, the entire house is made of southern yellow pine.
