I’m not a tile expert. What happens when you wipe it with water- is the color consistent? If so the sealer should be used everywhere.

IMO wait a few more days before panicking it could be the grout has not dried everywhere .

When I wipe it with water, the color looks pretty consistent between the areas that are light vs dark when dry.

Would the color enhancing sealer make the grout the color it is when it is wet? If so, that's way too dark and won't solve my problem, unless I can just use a TINY bit on the light areas to make them just a bit darker. Anyone have luck with this approach?

The installation was completed four days ago. The color has been inconsistent like this since the evening of the first day and hasn't changed at all since then, so I don't think it's going to get any better with time.

Patricia and I agree.

HU-223323909 - What did you end up doing here? We're having a similar issue with our grout, the same brand/color as yours, in out shower - it's been a nightmare to deal with.

Sorry to hear others are having problems with it as well - I thought I just had bad luck with my installer, given that multiple other problems surfaced down the line with the work he did.

The color unfortunately never improved on its own since day one of the installation so I ended up using a colorant to make it look better. It's probably 95% consistent now and I'm pretty happy with it. I don't know how well it would hold up in a shower vs a backsplash though - fingers crossed it works for you too! Modern Stone Grout Stain Color Seal - found it on Amazon.

Thank you - so helpful! For the Modern Stone Grout Stain Color Seal, did you get it in the same color as the grout (the smoke grey)?

Yep, got the smoke grey, same color as the grout - it matched well.

Great - thank you so much!