Repost this:
http://matchstick.com/nyu/ipc/week11.html
no coincidence that three color primaries and three notes in chord
take pure red, green, blue, halve down to pitch and find intervals for yellow, cyan, magenta
make chords for each color
take painting, average all colors and find chord.

http://www.photo.net/photo/edscott/vis00010.htm
red (580 nm), green (540 nm) and blue (450 nm).
thz 517, 556, 667

go with this one, it shows peaks, not perception, and includes rods
http://webvision.med.utah.edu/photo1.html#pigments
blue - 437, rod - 498, green - 533, red - 564
thz 686, 602, 563, 532

http://www.rwc.uc.edu/koehler/biophys/6d.html
blue (narrow 419), green (broader 531), red (also broad 558)

http://www.cals.ncsu.edu/course/ent425/tutorial/colorvision.html
blue: 450-500
green: 520-550
red: >680

http://www.informationheadquarters.com/List_of_phobias/Colour.shtml
red	~ 625-740 nm        ~ 480-405 THz
orange	~ 590-625 nm        ~ 510-480 THz
yellow	~ 565-590 nm        ~ 530-510 THz
green	~ 520-565 nm        ~ 580-530 THz
cyan	~ 500-520 nm        ~ 600-580 THz
blue	~ 450-500 nm        ~ 670-600 THz
indigo	~ 430-450 nm        ~ 700-670 THz
violet	~ 380-430 nm        ~ 790-700 THz

red	~ 625-740 nm ~ 480-405 THz 
orange	~ 590-625 nm ~ 510-480 THz 
yellow	~ 565-590 nm ~ 530-510 THz 
green	~ 500-565 nm ~ 600-530 THz 
cyan	~ 485-500 nm ~ 620-600 THz 
blue	~ 440-485 nm ~ 680-620 THz 
violet	~ 380-440 nm ~ 790-680 THz 

don't trust any chart that include indigo, that was only added because people wanted an extra vowel when pronouncing the acronym of the color spectrum
indigo is actually between green and blue (kind of teal) so it should be pronounced roy g ibv

400 nm 750 THz 3.10 eV 
750 nm 400 THz 1.65 eV 

Hz = 1
KHz = 1,000
MHz = 1,000,000
GHz = 1,000,000,000
THz = 1,000,000,000,000

blue/437nm/686THz/312 pitch	Eb
rod/498nm/602THz/548 pitch	Db
green/533nm/563THz/485 pitch	B
red/564nm/532THz/484		Bb

or

blue (narrow 419), green (broader 531), red (also broad 558)
THz 716.0, 565.0, 537.6
pitch 651.2, 513.9, 488.9
E, C, B

or

red (580 nm), green (540 nm) and blue (450 nm).
thz 517.2, 555.6, 666.7
pitch 470.4, 505.3, 606.4
Bb, B, D#

or

red	~ 625-740 nm ~ 480-405 THz: 436.6 - 368.3: Gb - A
green	~ 510-565 nm ~ 590-530 THz: 536.6 - 482.0: Bb - C#
blue	~ 445-492 nm ~ 675-610 THz: 613.9 - 554.8: Eb - Db

or

blue: 450-500	667-600		607-546	D (Db/D/Eb)
green: 520-550	577-545		525-496	B/C
red: >680	441		401	G

G	red
B	green
D	blue

D	blue
E	purple
F#	magenta
G	red
G#	orange
A	yellow
B	green
C	cyan