The tank and tub are original to the house which we built in Jan 1990. I think you may be right in that the tub is slightly "greyer" than the toilet. Still, Almond is definitely lighter than either one. Id rather match to the toilet than the tub since Im buying a toilet lid though.

Sometimes the underside of the tank lid has a number and date on it. There are toilet seat matching companies that will send you samples. https://www.classic-colors.com/MATCHYOURCOLOR

1990 says Mexican Sand is the more likely candidate. Any plumbing place like Ferguson’s should have the paper samples. It’s very rare just to be able to buy the tank lid though. Most companies have defaulted to selling whole fixtures only. Which is why I suggested contacting Kohler directly. If they have one, they are pretty good about getting it to you.

You can always measure and just get a wooden one...

Wood is not an option for decor reasons.

I was at Lowes tonight and found a Kohler leaflet with some swatches. Not sure how accurate they are. The Dune color seems closest. Im not sure how accurate this print is however because the Almond looks way way too dark. Almond was too LIGHT for my toilet. Also there was no print/swatch for Mexican Sand.

I would almost contend the toilet has just a TINGE of red in it. Just enough to not make it a straight milky beige. It looks beige, but only against other colors or swatches does it seem to have that angle to it.

Try plumbing supply.com

Seeking a perfect match to a fixture that is 28 years old may be unrealistic....perhaps go a shade darker to coordinate with the floor color or the tub color...

Yeah this has been a royal pain in the butt. I may try one more seat color -- nothing in stock at Lowes or Home Depot is dark/beige enough. They are all white, biscuit, almond types. And its not that this is really a dark toilet. I guess its just an unusual beigey type color. Just ordered Sandbar (try #3!).

I may end up doing what I didnt want to do and buy a seat cover for it. The seat itself will still be seen under it, but probably not enough to look too atrocious. Im hopeful Sandbar will get be close enough. Honestly Biscuit and Almond were not close.

Just one more reason for WHITE tubs and toilets. When you get a new toilet , even in white? A good white toilet brand, and a plumbing supply capability is to order a second seat/lid for the future and store it. One toilet/2 seats. There you go.

A 1990 bath is probably begging for an update in other ways : )

Have you considered getting a new toilet? They’re not that expensive, and you would be done with this by now. It will pay for itself with savings on your water bill, as a new toilet will use less than 1/3 the water. We got a new Kohler with aqua-piston last year, and it works very well.

Im afraid Im not buying a new toilet to replace a perfectly good toilet just to match a $20 toilet seat.

So...did you get the correct match?? (Edit: I've been trying to color-match a 1995 Kohler K3397. I tried Biscuit, which turned out way too light. Guess will try Sandbar or even the newer Dune. It's such a pain. If only I had a color code somewhere on the toilet -- don't see one.)

Nope never quite matched but it was close enough and most people other than myself might not even notice. Seems like there are 10 shades of Kohler tans and off whites in terms of toilet seats. Why I have no idea. Shouldnt be this difficult.

No, it shouldnt!

Chris I think the color that you seek is called "Parchment" -- 40. https://www.us.kohler.com/us/nonprdcontent/gadgets/articleImageViewer.jsp?colorSearch=true&enalrge=yes&relatedobj=CT_v1980s_Parchment40_Cnt&subsec=color-1980&parentId=T1-color-timeline According to their website Kohler used it until 1989, but I am guessing that it took years for all of the products in that color to be sold off once it was discontinued. I hope this is helpful!

innocent blush

Im having the same problem! i ordered sandbar but it is too dark. kohler customer service says my toilet model number is too old!

Did you every find something suitable?