Contrasted Hues
[Figure 458] illustrates what is commonly known as a contrasted grouping or arrangement of hues. It consists of the tints or shades of one or more hues and gray. It is the basis of color harmony between silver and semi-precious stones. If two hues are used, one of them should be reduced in chroma to nearly gray.
Dominant Hue
[Figure 463] is typical of still another form of positive hue grouping. By consulting the yellow hue rectangle of [Figure 457] it is noted that the wood work, side walls, and ceiling of [Figure 463] are all contained in one rectangle. This classes this color scheme as an example of dominant arrangement which may be simply defined as the tints and shades of one hue. The arrangement does not have the variety supplied by analogous grouping, introducing as it does, two hues from different rectangles, but for large surfaces dominant grouping is a conservative and safe arrangement. Its tendency toward monotony should be guarded against by the introduction of some object high in chroma in the room decorative scheme. A bright colored vase will accomplish this successfully. Rule 12o, [Chapter XVII].
Rule 12f. Color schemes for wood work and side walls should preferably be selected from one of the following groupings: analogous, contrasted, or dominant arrangements of hues. Analogous grouping is preferable where variety of hue is desirable.
Special Arrangements
The above rule is not to be taken as arbitrary. In the hands of competent designers attractive color schemes are developed that differ materially from the above suggestions. But, for the usual home setting, the above arrangement may be regarded as satisfactory, and is given with the idea of bringing the school shop work and the home environment into closer color harmony. A specimen of special arrangement is given by the Circle 3A. This is delft blue, which harmonizes with dark mahogany in a satisfactory manner.
Hue Range for Side Walls and Ceilings
In adjusting the hues for side walls and ceilings, the relations should be of the closest. The plotting of ceiling hues in [Figure 457] shows a strong tendency for the ceiling to be colored with a tint of the side walls (dominant arrangement), or by a tint selected from the next rectangle (analogous arrangement). Yellow or yellow-green, very light and much reduced in chroma, seems to be the almost universal custom. This is due to the strongly light reflecting qualities of yellow.