Why Does It Matter If My Paint Is Transparent Or Opaque…As Long As I Like The Color?

Knowing a paint’s attributes puts you a step ahead as an artist. By being familiar with whether a pigment is transparent or opaque, staining or non-staining, saturated or unsaturated, for instance, you will begin to be able to predict how the paint will behave. Understanding your pigments is an important step in getting the results you want and in being successful as a painter.

TRANSPARENT VS. OPAQUE:

A TRANSPARENT color maintains its luminosity or brightness because it allows the white of the watercolor paper to reflect back through the paint to the viewer’s eye. Since a transparent color lets light through, it is possible to create the illusion of a ‘glow’ of light in a painting.

 

Apple blossoms.jpg

Apple Blossoms – You can see the first layers of color through the transparent pigments.

In contrast, an OPAQUE watercolor pigment blocks the light and prevents luminosity. While thinning an opaque color can make it somewhat more transparent, it will then lose intensity (strength). In general, you cannot see the white of the paper through an opaque paint. The more opaque a color is, the more it blocks the white of the paper, particularly if it is layered.

STAINING VS. NON-STAINING TRANSPARENTS:

If you plan to glaze one color on top of another color to create optical color mixing, use transparent colors. If you want to create the effects of light and produce a ‘glow’, use a paled, transparent color.

Be aware that there are both STAINING and NON-STAINING transparent colors.

STAINING TRANSPARENT pigments, such as Indian yellow, Phthalo/Winsor Blue, Phthalo/Winsor Green, Prussian Blue/AntwerpBlue, Phthalo Violet, are bold and intense. They are NOT easily lifted. Because they are transparent, they will NOT produce mud IF mixed with other transparent  colors. Mixed full strength, they create rich darks.

NON-STAINING TRANSPARENT pigments, such as Permanent Rose, Aureolin Yellow, Viridian, or Cobalt Blue, on the other hand, are delicate and can be lifted easily. They are ideal for glazing, layering, or mixing a transparent gray from primary colors.

Still other pigments, like Lemon Yellow, Gamboge, Quinacridone Rose, Cobalt Violet, Sap Green, or Ultramarine Blue, are LOW-STAINING and transparent to semi-transparent. Intensity of these colors is average, and they can be partially lifted.

If you wish to lift one color of a mixture and reveal a second color underneath (e.g. by blotting out clouds or scraping paint back to create rock texture or a tree trunk), then combine a staining pigment with a non-staining pigment.

Stormy Hills.jpg

Stormy Hills – Opaque pigments do not allow earlier color layers to show through.

OPAQUE colors tend to be less bright, although semi-opaque pigments, such as Cadmium Red, Cadmium Orange, Cadmium Yellow, or Cadmium Lemon, can be somewhat luminous when thinned or diluted. The opaque earth colors, like Indian Red, Light Red, Yellow Ochre, Burnt Umber, Sepia, Indigo, or Cerulean Blue, are often LOW-STAINING and UNSATURATED (not a vivid bright). Burnt Sienna and Raw Sienna, earth colors, are a bit unusual in that they can be transparent. Remember that adding an opaque color to a paint mixture or layering with an opaque pigment will make creating ‘muddy’ color more likely. Further, if you begin a painting with opaque color, you’ll probably lose the effect of light.

CREATE A COLOR CHART TO DETERMINE TRANSPARENCY:

Transparency and opaqueness of paint pigments can vary quite a bit by manufacturer. For example, Raw Sienna ranges from yellow to orange to brown depending on the company that formulates it. So, get to know the specific paints YOU have on your palette by creating a color chart. First, draw a line with a black permanent marker (or waterproof India ink). Allow to dry. Paint swatches of medium dark paint over the black line. Transparent colors won’t cover the black line. Opaque colors will. Staining colors will look dark.

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Two Color Chart examples.

IN SUMMARY:

Most organic or synthetic paints are transparent, while earth colors tend to be semi-opaque or opaque. The transparent pigments are the most versatile type of watercolor. They remain transparent when mixed with other transparent colors. Opaque colors, on the other hand, DO NOT mix well with other opaques. Try to combine opaque paints only with a transparent color or colors, if possible, to avoid mixing muddy colors. Or, best of all, use an opaque pigment by itself to show off its best attributes.

Get to know the paints on your palette. As Jean Dobie states in Making Color Sing, “To paint glowing, vibrant watercolors, you must become familiar with your pigments’ personalities.”

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Spring, Summer, Autumn, and Winter Palettes.

Nature’s colors can vary considerably depending on the time of day, the weather conditions, and the season. The effects of the time of day and the weather on color changes and atmosphere seem more obvious and easier to observe than the effects of the season. Nevertheless, each season has its own characteristic feel and look, which an artist’s choice of paint colors can convey.

SPRING colors tend to be cool. Spring is a time of fresh growth, when buds and flowers burst forth. Forest floors are becoming free of frost and snow, and bright green shoots begin to appear.

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Hansa Light, Cad. Yellow, Winsor Blue, Sap Green, Permanent Mauve, Raw Umber.

Cadmium Yellow can be a bright spring color, especially when a little Hansa Yellow Light ( or Lemon Yellow or Cadmium Yellow) is mixed in. The cooler blues to use are Cobalt and Winsor (or Pthalo) blue. DaVinci Sap Green has a strong blue (cool) tinge. Other possible colors for a spring painting include Permanent Mauve or Raw Umber.

Spring pictures:

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white primroses.jpg

Sunny days of SUMMER are filled with golden warmth and numerous, lush greens. The summer palette includes warmer colors than the spring palette.

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Cad. Yellow, Raw Sienna, Burnt Umber, Ultramarine, Sap Green, Perm. Aliz. Crimson.

Raw Sienna is a warm yellow. Cadmium Yellow mixed with DaVinci Sap Green is an excellent mix to use for summer foliage. The sharp, cold light of spring has been replaced by softer summer light, creating softer-edged rather than crisp shadows. Create a softer edge by painting summer shadows on damp paper or lightly blotting the shadow edge. Ultramarine Blue and a touch of Permanent Alizarin Crimson make a warm summer shadow. (Another possible color combination for a warm shadow mixture is Ultramarine Blue with a touch of Burnt Umber.)

Summer pictures:

mucillo.jpg

river shoes.jpg

AUTUMN is the season of reds, oranges, golds, and browns.

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Cad. Red, Cad. Yellow, Raw Sienna, Ultramarine, Burnt Sienna, Burnt Umber.

Rich, warm colors can be created with warm golds and siennas, such as Raw Sienna, Burnt Sienna, and Burnt Umber. Fiery reds made with Cadmium Red and golden yellows made with Cadmium Yellow light up the foliage. When the leaves fall, stark and skeletal trees are revealed in deep browns, which can be approximated with various combinations of Burnt Umber and Ultramarine Blue.

Autumn pictures:

autumn road.jpg

golden beech.jpg

 

A WINTER palette would be composed of cool colors and more neutral pigments, mixed to produce slightly muted tones, often tinged in gray.

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Perylene Green, Sap Green, Winsor Blue, Payne’s Gray, Perm. Mauve, Raw Umber.

DaVinci Sap Green and Perylene Green (or Holbein Shadow Green) can be used as a base for any greenery. Alternatively, try blending Winsor Blue (or Pthalo Blue) with Payne’s Gray and mixing in some DaVinci Sap Green. For snow, leave the paper white and paint around it. Snow does have some color, depending on the strength of the steely winter daylight. Snow shadows could be blended from Cobalt Blue and Permanent Alizarin Crimson into a cool, blue-violet. Another blue-violet snow shadow combination might be Winsor Blue (or Pthalo Blue) and Permanent Mauve. Raw Umber can be useful to tone down trees, branches, and ground covers.

Winter pictures:

 

eliades.jpg

Barn.jpg

The main tool that any painter has to work with is color, and by choosing pigments with different temperatures, tones, and intensities, an artist can suggest both warm and cold environments throughout the seasons.