One thing your rods (lower light receptor cells that are more dominant 1deg+ off the exact area of gaze) have peak sensitivity at the 'green' range of the spect

One thing your rods (lower light receptor cells that are more dominant 1deg+ off the exact area of gaze) have peak sensitivity at the 'green' range of the spectrum. So, green will nuke your night vision whereas red (and to a lesser extent Amber) will leave your rods dark adapted.