Composition of Spectrum Hues. 
21 
TABLE OF PERCENTAGES OF COMPONENT COLORS IN THE 
CONNECTING HUES OF THE CHROMATIC SCALE. 
The following table shows the relative percentages, 
in color-wheel measurement, of the two components in 
each of the hues connecting adjacent pairs of the six 
spectrum colors as represented on the original Plates of 
this work; together with an equal number of exact inter¬ 
mediates (not shown on the Plates), the latter in lower¬ 
case type and not indicated by symbols. 
Num¬ 
ber. 
Color. 
Red. 
Orange. 
Yellow. 
Green. 
Blue. 
Violet. 
Wave¬ 
length. 1 
1 
Red 
100 
644 
2 
90 
10 
3 
O-R 
80 
20 
4 
70 
30 
5 
OO-R 
60 
40 
6 
50 
50 
7 
R-O 
40 
60 
8 1 
30 
70 
9 
QR-O 
20 
80 
! 10 
10 
90 
1 1 
Orange 
100 
598 
| 12 
96 
4 
13 
OY-O 
91 
9 
14 
86 
14 
15 
Y-O 
80 
20 
1 16 
73.5 
26.5 
17 
O-Y 
65 
35 
18 
56.5 
43.5 
19 
YO-Y 
47 
53 
20 
36.5 
63.5 
21 
O-YY 
25 
75 
22 
13.5 
86.5 
23 
Yellow 
100 
577 
24 
i.. 
87 
13 
25 
YG-Y 
75 
25 
26 
64 
36 
27 
G-Y 
55 
45 
28 
46 
54 
29 
GG-Y 
39 
61 
30 
. 
31 
69 
i As determined by Dr. P. G. Nutting-, Associate Physicist, U. S. Bureau of Standards. 
