Buying too many paints is a classic rookie error

Mix, don’t buy, your colors.
Grand Bahama palms, by Carol L. Douglas. There’s really no reason to buy any greens for oil painting, and just one will do for watercolors.

“[Our] watercolor instructor wants us to buy every color we need for a painting. I think it is unnecessary because you can mix colors to get the same or similar results. What is your opinion?” a reader asked.

I ask my students to buy a specific palette based on paired primaries, but that is very different from asking them to buy a specific pigment for a painting. An artist who regularly switches out his or her paints is akin to a pianist who rearranges the keys for each song.
Buying too many paints is a classic rookie error. It’s easy to get pulled into a revel of paint-buying when you’re feeling unsure. We’ve all done it.
Tomatoes, by Carol L. Douglas, was painted without any red or green on my palette. The red you see is violet and orange.
The clear leader in marketing romance, as Handprintcalls it, is Daniel Smith. I sometimes go to their website to feel the verbiage wash over me. “The mineral for our Red Jasper Genuine comes from India’s Gwalior region and is colored a rich red from iron. Historically it was often carved as amulets, vases and other decorative items.  India’s red jasper was one of stones used to beautifully embellish the Taj Mahal with other semi-precious stones that were carved and inlaid into the white marble in curvilinear flower forms… Spiritually, red jasper is associated with the base or root chakra and helps to ground and energize/heal the body and provide balance and protection.”
I can infer it’s an iron oxide red. Not as romantic, but cheap and commonly available.
Headlights, by Carol L. Douglas. No black here, either. It’s ultramarine blue and burnt sienna.
Daniel Smith loves to tell people how to use each pigment: “Red Jasper Genuine is a wonderful color for landscapes, birds like the male common chaffinch and reddish egret, as well as animals who have a medium to light reddish coat like the red panda.” I imagine a studio with hundreds of tubes of their paint, in careful rows, tagged, “for sunlit shadows,” or “for moonlight,” or “for powerful, monolithic shapes.” It’s all very entertaining and poetic, but will do nothing for your painting.  
Get tough, Reader. Ask your teacher the purpose in all these single-use paints. If the answer isn’t satisfactory, it’s time to find a new instructor. Mixing color is so integral to painting that a class that avoids it isn’t going to teach you anything useful.
Ogunquit rocks, by Carol L. Douglas. All four paintings were done with the same palette.
On the heels of that note came another. “Do you teach color mixing by visual understanding or by paint name?” a reader asked. “The moment I understood that there was no such thing as red, blue, and yellow, the world changed and it became possible to see the nature of each color.”
I teach color mixing (as distinct from color theory) on the basis of pigment. I’ve developed, over the years, a stable palette that gives me the widest gamut (range) of color tones. They don’t include convenience mixes.
These are combinations of two or more pigments to approximate a different pigment. Many of them were developed as substitutes for antiquated pigments that may have been pulled from the market because they’re fugitive or toxic. They are limited, because:
  • Every time you add another color to a mix, you’re adding overtones;
  • You can easily make the mix yourself if you should need it and;
  • They’re inconsistent. Their marketing name tells you nothing.

How do I know what pigment(s) are in my paint? They’re written on the tubes, in tiny letters. Here’s a quick primer on how to read a paint tube. It sounds complicated, but it’s nothing compared to the frustration of painting with the wrong materials.