Hunt defines that "two colors are complementary when it is possible to reproduce the tristimulus values of a specified achromatic stimulus by an additive mixture of these two stimuli. " That is, when two colored lights can be mixed to match a specified white (achromatic, non-colored) light, the colors of those two lights are complementary. This definition, however, does not constrain what version of white will be specified. In the nineteenth century, the scientists Grassmann and Helmholtz did experiments in which they concluded that finding a good complement for spectral yellow was difficult, but that the result was indigo, that is, a wavelength that today's color scientists would call violet or purple. Helmholtz says "Yellow and indigo blue" are complements. Grassmann reconstructs Newton's category boundaries in terms of wavelengths and says "This indigo therefore falls within the limits of color between which, according to Helmholtz, the complementary colors of yellow lie. "
Use our keyword tool to find new keywords & suggestions for the search term Yellow. Use the keywords and images as guidance and inspiration for your articles, blog posts or advertising campaigns with various online compaines. The results we show for the keyword Yellow will change over time as new keyword trends develop in the associated keyword catoegory and market. For optimum results we recommend just searching for one keyword.