yellow is a light with a dominant wavelength of roughly 570,590 nm!
That is interesting! What is a nanometer?
well im not sure, my specialty is in the color yellow, but i can tell you yellow is  a primary color in subtracted color systems. that is used in painting or color printing
What does it mean to be a primary color?
well in the rgb color model which we used to create colors on tv, yellow is a secondary color which is made by combining red and green at equal intensity. when i say primary color in that sentence i meant it is the primary color in subtractive color and not to be confused with our three primary colors rgb!