I think this is when white light is used that you get an Absorption Spectra. All the colors of the Absorption Spectra do make it kind of confusing. And these are being absorbed (with emphasis on blue). Actually, if you just burned hydrogen and looked at its spectra, you would get the Emission Spectra and not the Absorption Spectra, and this Emission Spectra would only show the bunch of blue lines, one purple line, and one red line. All the other colors shown are just part of the natural light being shown down on the element. This is the color that will be the opposite of the flame color on the color wheel. Remember, always look at the color area on the rainbow that is blacked out the most. So if blue is being absorbed, the opposite color would be transmitted and this color is orange. However, there are MORE dark lines in the blue region. Hydrogen spectrum (absorption or emission) is an impotent type of tool for the determination of the atomic structure of chemical elements or atoms in quantum. If you look at the lines for hydrogen blue, purple, and red are being absorbed. Therefore, all the other colors would be absorbed. (This would be orange.) The element hydrogen turns orange when being burned and this color is transmitted to us. An absorption spectrum with dark absorption lines corresponding to specific wavelengths at which light is absorbed. This means that if there is a big dark band where blue would be, then the opposite color to blue on the color wheel is being transmitted. OpenOffice Calc Version (December 31, 2013). You are supposed to look at the dark areas of the absorption spectra and those dark areas indicate that the color which would be there is being absorbed. Comparison of Calibration Curve Fitting Methods in Absorption Spectroscopy. I think both the absorption and emission lines are showing which colors are being absorbed. In obtaining an absorbance spectrum, you are getting a graph representation of how light is interacting with a solution, and how that relates to the solution.
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