|
Wavelength, nm
|
Colour of the filter
|
Colour of the liquid
|
|
400-435
|
violet
|
yellow-green
|
|
435-480
|
blue
|
yellow
|
|
480-490
|
greenish-blue
|
orange
|
|
490-500
|
blue-green
|
red
|
|
500-560
|
green
|
purple
|
|
560-580
|
yellow-green
|
violet
|
|
580-595
|
yellow
|
blue
|
|
595-605
|
orange
|
greenish-blue
|
|
605-730
|
red
|
blue-green
|
|
730-760
|
purple
|
green
|
|
|