Okay well my theory sucks but I dig the charcoal!! Lol
I also have red laps in navy blue. Both yours look really nice I plan on getting another color eventually and maybe using these navy ones for a life size Michael.
They all look about the same to me! Lol Red Kap is pulling a fast one! Lol
Actually the lighting has an effect on them.
Spruce is a blue-green color and if dulled enough can look grey. It should depend on the color concentration used; perhaps yours didn’t have the same dye concentration? Lighting should also play a key as it’s not based upon a single primary (additive or subtractive) color.
Yeah the pics make them look spruce to me. The charcoal ones are darrk grey in person and look navy blue on camera. I’ll post a pic later. I have also ordered spruce coveralls so when I get those I’ll do a comparison.
Charcoal vs spruce green, and then a pic of the spruce by itself to show how it looks by itself.
Hmmmm, mine may indeed be spruce but I like how they can pass as either. That probably will be even more the case as they age
I just got Red Kap Spruce Green coveralls in the mail today. They look pretty much like yours. Which is great imo. Not tooo green.
That’s awesome!! Yeah, I really like the color!!
I have to send mine back because I ordered the friggin wrong size 
Yeah man. If there was some mistake made then it’s a happy mistake. I really dig the look as well.
Sorry to hear 
If it makes ya feel better my zipper was broken but I took a metal file to that shit and now it works fine… Home Depot ftw! Lol
Whats your height & weight?? I’m 5’10 200lbs & a 46 regular fit great. And even if I lost 15lbs they would still fit great
I’m not the person that you’re talking to, but I’m around 6ft and 120 lbs, small, I know. My navy blue dickies poofs out in the back and I had to roll the cuffs and ankles of it up.
I’m 6’5” and about 260 lbs and wear 46 talls but I ordered regulars somehow.
Would you mind posting some pictures of the navy coveralls and a comparison between spruce and navy ?
Yes, those definitely don’t look like your typical spruce green!! I wish my spruce green coveralls looked like that!! ; )
Spruce is a blue-green color, and can vary in saturation. Just looking up the color you get examples like these…
https://www.colorcombos.com/colors/33434C
https://www.colorcombos.com/colors/3F4D4F
https://www.colorcombos.com/colors/3F535C
https://www.myperfectcolor.com/en/color/15436_Alexander-Julian-AJ319-Blue-Spruce#prettyPhoto/0/
http://www.art-paints.com/Paints/Marker/Sharpie/Nature-Tones/Spruce-Green/Spruce-Green.html
Which are all over the map in saturation, but share similar qualities, and a few look almost gray.