Or one of these?
In fact, in normal light you'll most likely find all these colors in a tangerine. Here a photo of a tangerine on a table lit by sunlight from a window. Can you locate in it all the colors above?
Tip: The hue orange that we associate with tangerines, becomes more yellow where warm light strikes it and more purple as it moves into shadow. Oddly, the highlights take on a purplish cast.
Probably when I asked you to imagine the color of a tangerine, you saw something like this:
But looking more closely at the photo, we see very little of the color we associate with a tangerine. If you hold one of these little fruits in your hand, close one eye and squint the other, you'll see at least five different hues, including the actual tangerine color (its local color), but very little of that local color will be visible. You can find it in that area where shadow meets light, but nowhere else.
Tip: If while painting, you search out and use at least five colors within any form comprised of a single local color, you will discover a whole new world of color. You'll also discover that it takes several hues for a painter to communicate the perception of any single local color of a three-dimensional form.
Happy painting,
P.S. When there's a value change caused by light and shadow, there's a hue and intensity change as well.
