Cundey stated he lit it in a way that would make the dark scenes look blue
This photo is very telling. Thanks for sharing, Kaizu.
They definitely look like a very dirty aquamarine.
“Murky teal” Lol.
Agree with Zac Crook here. Looks like a dirty greenish. Interesting because in this photo taken under the same lighting, the coveralls look definitively charcoal.
And in this Spanish poster, the coveralls look both colors, despite being in studio lighting.
I still believe the coveralls were an olivewood color, like Lamson78 says above. I’ve seen the pics he’s posted of his, and olivewood changes color depending on the lighting just like in the movie.
YA YA YA WHATEVER!! Damn sears 
I found these vintage Montgomery Wars coveralls. They look like thy could be the color in that picture with Michael holding the flower.
I don’t know why this is still being debated. The correct brand is Whopper Jr. and the color is bubblegum pink.
Spruce Green / Olivewood are pretty much agreed upon by everybody nowadays but due to the lighting of the original film, many people find themselves unhappy when purchasing a pair in this color. It really depends on your personal preferences. You could get a Navy pair and make them look great in photos, or if you are willing to really mess with the lighting a Spruce Green pair will look identical to what you see on screen. Back in the day they looked completely Navy to me on VHS but now with all of the 4K releases it is easier to tell that they were indeed not blue.
I’m gonna say with the amount of coveralls I’ve seen and have seen how charcoal changes colors the most in certain lightings to blues/greens etc charcoal is ultimately probably what color they actual were. Also know any charcoal dye has a little bit of blue/darker green added to it along with other colors to make the charcoal color itself, hence why it changes colors so much in different lighting that proof right there alone also leads me to 99% sure believe the hero coveralls were in fact charcoal.
Have you seen the way these vintage olivewood coveralls change color? It’s insane and mimics the hero pair exactly.
Photo Credit, TheShape1188
So does the Charcoal, so I guess that’s ultimately why this threads still exists! But I think it’s actually pretty cool that this topic has held its weight so long!
But also Tommy said they were a green color. You do have a point! It’s amazing that after so long we still know no definitive color. Freaking nuts!
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I believe wholeheartedly that the hero pair are that classic “mechanic” color. Not navy, not spruce green, not charcoal - but if you mixed all three together.
Charcoal is ultimately all those mixed together.
I just go off what Tommy said and he said they were a greenish color closest to spruce but I see Navy and Charcoal throughout the film.
Do you have any pics of charcoal coveralls going from blue to green to grey based of certain light scenarios? I don’t know if I’ve ever seen any but if you have I’d certainly like to as well.
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I went with charcoal grey then during weathering, added a light olive drab dye… Now, they look grey most of the time in most lighr with a slight tinge of green. So, I guess Im on the fence…
Nick Castle has said they were “smokey grey” and Tommy Lee Wallace says “greyish green.”
I always go with what Castle says and what I personally like, “charcoal grey.” I think it looks the best.
Tommy Lee said it was not olivewood for sure, Nick said it was a bluish grey
I just watched a video not to long ago (trying to dig it up on youtube) where he was asked at a conference (everyone cheered at the question) and he said, and I quote, “they were a smokey grey.”
Anyone here have access to said video?
Here it is, he says bluish grey, he never said smokey
https://www.youtube.com/watch?v=F1p2Vn3RmZw
and here’s TLW saying it was not olivewood
https://www.youtube.com/watch?v=KihWFtei6HU