RAINBOW HUES

We have already “hammered away” at the importance of Value, so this is a good time to introduce the set of terms devised by Munsell, that help us discuss and reproduce color:

Hue–the name of a specific color as it appears in the color spectrum.
Value–the specific darkness or lightness of a color.
Chroma–the specific intensity (brightness or dullness) of a color.

Color_Wheel_Finished_Website1

Here, we will address “hue.” Although there are many varied color wheel designs, Munsell incorporates ten basic hues that come from the color of light as seen through a prism, or the rainbow spectrum. By shaping them in a circle, they become the color wheel. They are:

red-purple, red, yellow-red, yellow, yellow-green, green, blue-green, blue, blue-purple, purple

Every color falls into one of these ten basic HUE categories, or possibly between two of them, where reside the interhues.

Most artists have had at least one important teacher. Mine was/is Frank Covino. He designated tube names and value numbers for Munsell’s ten hues.

At first, you may be tempted to gloss over this list, but imagine going to the store and selecting the most useful green, red, or yellow, and then assigning its value as you go, all the while keeping in mind how the colors will all interact, and choosing those that work best together in the largest variety of situations–methinks not the easiest of tasks.  This work has been done for you, here:

Red-purple is Alizarin Crimson, which is a value 1 tube color.
Red is Cadmium Red Light, which is a value 5 tube color.
Yellow-red is Cadmium Orange, a value 7.
Yellow is Cadmium Yellow Light, a value 9.
Yellow-green is Pthalo Yellow Green, value 8.
Green is Cadmium Green, value 1.
Blue-green is Viridian Green, value 1.
Blue is Cerulean Blue, value 3 or 4 (depending on the brand).
Purple-blue is Ultramarine Blue, value 1.
Purple is Cobalt Violet, value 1.

These tube colors should visually disappear when placed on corresponding value numbers in the value chart (Don’t forget to squint, as discussed in the last post.).  If they look like freckles instead of disappearing, you know you either have them in the wrong place, or your value chart is not correct.  That’s why we use the Covino Palette–those values are already prepared for you to start using at once, without a lot of fumbling about.

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All the best,

Marsha

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