Oil Painting Techniques
Block in color with diluted brush strokes by following the outlines of an object. This allows you to define the edges of the object without using the thicker paint. The key is to outline the edges of the object with the same colors that will be used inside of it.
You can use a painted background as the base of the painting. Use diluted paint applied in small strokes. Sketch or draw over this base color for an instant background.
When showing the transparency of an object in the painting, apply opaque colors over the top of transparent colors.
Oil painting allows the artist to completely paint over and completely cover other paint layers as long as they are dry. If you plan on using multiple layers, start out with thinner layers of paint in lighter colors. Slowly make your way toward thicker layers and darker colors.
Dilute the paint to various stages to create contrast that will intensify the colors. Different densities of the same color can be used to better define the form. When using this technique, leave the background color for last. The diluted surface of the background contrasts with the denser surface of the object.
Contrast the colors in your piece to create a three-dimensional feeling.
Brush stroke size.
Different sizes of brush strokes can be used to define and differentiate planes, masses, objects and different areas of the painting. Try experimenting with longer brush strokes, short jabs, and even tiny dots. In general, smaller brush strokes will represent objects closer in the foreground.
When painting foliage, your brush strokes can represent leaves. Vary the tones of the leaves by adding more or less diluted paint. Learn more about painting foliage with this plein air (painting outdoors) painting course.
For an Impressionist look to your painting, try using this technique of pointillism. This consists of dabbing small quantities of paint systematically across the entire canvas to achieve a uniform and continuous texture.
Informal brush strokes.
Try using informal brush strokes that do not follow a pattern and run in different directions. These strokes should cover the canvas in fluid bunches of color. This technique can be used with both thick and diluted paint.
Nonrepresentational brush strokes.
Use a brush stroke free of representational obligations. This means the strokes can go outside of the lines of the object being defined. The strokes will create both the drawing and the color at the same time.
Create a soft feeling in your object with blurred and irregular brush strokes. Try rubbing the brush against the support to get a fluffy texture.
The main complementary colors are yellow and violet, blue and orange, and red and green. When these colors are mixed they create gray but when they are next to each other, they create a stark contrast. Consider using complementary colors in your work.
When painting shadows in landscapes, use cool colors like blues, violets, purples, and grays. If you are interested in learning more about oil painting continue your education with a class on oil painting techniques and color theory.