I bought a pair of cleats to run a spin or 2nd headsail.
Does the green one go on the right side of the boat and red on left? or are they reversed so the green is on the left for the starboard tack sheet?
Have to admit I've never seen red and green cleats. Might as well follow the general rule - if you have two of something, the one with the least letters goes on the left side.
Left has less letters than right,
port has less letters than starboard,
red light has less letters than green light,
jib halyard has less letters than main halyard,
and now red cleat etc.