# Introducing: The Harmonic Note Colours

As a compliment to my 'Alternate Musical Scale' which was based upon using a harmonic, suitable to human hearing, of the Fundamental frequency vibration (1:1 cycle per second) i present the colour spectrum as a scale of frequencies based upon a harmonic of the Fundamental frequency suitable for human eyesight.

Purely by coincidence(!) the visible colours fall into the range of A to G using a Middle D of freq = 562.95 THz or the wavelength: 532.538383 nM

Here is the full spectrum/scale of harmonic colour:

Visible colour frequencies are in range 400 - 750 or approx Notes A-G:

D   = 11.259 x 10^14m
C# = 10.687 }
C   = 10.008 }
B    =  9.500 }
Bf  =   8.896 } Invisible Ultra violet
A   =   8.444 }
G# =   8.015 }
Af  =   7.907 }
G  = 7.506          }Purple/Violet
F# = 7.125          }
F   = 6.672                      } Blue
E   = 6.333                      }              } Cyan
Ef  = 5.931                                  } }
D  = 5.6295 x 10^14m                } Green
C# = 5.343                      } Yellow}
C  = 5.004         } Orange }
B  = 4.750 }       }
Bf = 4.448 } Red
A  = 4.222 }
Af = 3.953} Invisible Infrared

You can go here to plug in the wavelengths* and get the computer code for each colour and see a sample:

* - sorry - you'll need to calculate each wavelength from the frequency. I'll give you D = Green as 532.538383 nm (They have used this frequency of laser light to calculate the velocity and energy of all light).

I am aware that this is dependent upon our 'choice' of a second as the standard unit of time that produces the Fundamental frequency of 1Hz and wavelength being measured in metres. Alternate measurement units may result in different values and harmonics.

Neophyte 2018

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Comment by steve on June 14, 2018 at 9:19pm
Comment by steve on June 14, 2018 at 9:07pm

this is something that has always interested me, however i'm not sure if you've got it right

here's the chart

Color Wavelength Frequency Photon energy
Violet 380–450 nm 668–789 THz 2.75–3.26 eV
Blue 450–495 nm 606–668 THz 2.50–2.75 eV
Green 495–570 nm 526–606 THz 2.17–2.50 eV
Yellow 570–590 nm 508–526 THz 2.10–2.17 eV
Orange 590–620 nm 484–508 THz 2.00–2.10 eV
Red 620–750 nm 400–484 THz

1.65–2.00 eV