From the above color chart you can make any harmonious room combination. For any true harmony all three of the primary colors should be present. It is not necessary, however, to have three colors; a secondary color (made by blending two primary colors) would use the third primary as a complement. Look at the chart; you will note that green (made by mixing blue and yellow) has red as its complement. A third color in the room might be yellow or blue, yellowish-green, or blue-green. This is termed a complementary color scheme.

When using an adjacent, or monochromatic color scheme, any series on the color chart may be followed; for example, green, blue-green, blue, blue-violet, and violet. The complement or accent to this color scheme would be the complementary colors, orange, yellow-orange, red-orange, etc.

Before applying these principles to room schemes, there is one more rule to bear in mind. All colors in which red or yellow predominate are known as warm colors and colors in which blue and green predominate are known as cool colors. Since warm colors are more intense and tend to be exciting, they must be offset by cool colors, usually in the ratio of two to one, since it often takes two cool colors to balance one warm color. It is also well to remember that deep colors "advance" and light colors "recede." An oblong room can be made to look more square by doing the short walls in a deep green, the long walls in a light green. Primary and secondary colors are more intense than tertiary colors—colors receding and lightening with the admixture of additional hues.

Building a room scheme.—Taking all of the above facts into consideration, it may be interesting to work out a few simple color schemes for a living room. Assume that one wishes to do a "blue" room. The predominating color in the room will, of course, be blue. However, let us suppose we do not particularly care for a blue rug. Since the second largest piece in the room is the sofa, we have decided to use a blue sofa. We have two definite choices for a rug; it may be a greyed tone of red or wine color, or a greyed tone of yellow (beige or light brown). If we select the red-tone rug, we must think about our yellow tone for the complementary chair. Let us suppose we decide upon a tint of yellow or beige. A third chair now may be a secondary, or tertiary, of these three colors, and since our room is predominantly blue, we select a blue-red or violet color. Violet, you will notice, is a perfect complement to yellow. We might have used a shade of red or wine color as a complement but it would have given a red tone to the room.

For draperies we have several colors from which to choose but we must take into consideration the wallpaper. We may use a tint of the floor covering, or the sofa, or may bring in the third primary color. Let us suppose we had decided to use a tint of the floor covering or a soft pink tone. Our draperies now may be blue, blue-violet, or red-violet. Accents necessarily would then be red or orange. If wine-colored draperies were used, we would have practically an equal balance between red and blue, and our accessories would be yellow.

Another popular method of color coordination is to repeat the colors found in one piece with plain colors or novelty weaves emphasizing the colors of the figured fabric; for example, a room may have a blue sofa with a tiny pink figure worked into the tapestry. One of the chairs, then, could be pink in the same tone as the small figure; the other chair would then be one of the yellow tones, and could be either beige, or brown.

Some decorators repeat the floral colors of printed draperies in the room setting. Some combine the plain colors of the sofa and chair in a figured third chair which has a neutral background and picks up the colors of the other two pieces. It is well to mix the patterns in a room, a stripe combining nicely with a plain color, and a small figured mixture carrying out the third color and blending the striped and plain tones.

By referring to your chart you will discover many interesting color combinations. Just remember that adjacent colors take the opposite complement as accent. Complementary colors may be used with adjacent or with a third primary color, or with a combination of two primaries on a neutral background of the third color.

LINE AND FORM

Straight lines create an effect of strength, virility, and seriousness, and, if exclusively employed, of austerity or hardness; while curved lines create an effect of flexibility and joyousness, and, if, exclusively employed, the effect is one of weakness.