Hydrogen is the first element in the periodic table. It has 5 main colors that resonate when it is returning to its resting state. The color on the screen is an approximation as it is converting wavelength in nanometers to color using RGB (the red, green, blue dots on the monitor screen). The lowest tone, red, is only 3 hundredth of a Hertz from G#, (when using 440 Hz as A).
Here is a scale with all the tones for Hydrogen:
And here is a little improvisation with the tones: