Why so many rooms in my house are shades of beige...or...Tales of a color wheel reject

For my brief bit of personal time today (whilst younger naps and elder has his video time), I will share one episode in the saga of poor paint-picking skills which has played out during my adult life.  I know when I like something, and I know when I don't.  Problem is, I don't know how to achieve the former when it comes to paint.  I am picky, but need a class in interior decorating.  There are a couple of rooms in my house currently with colors so displeasing to me that I still feel stress about them, even though they've now been that way for years (because they're some of the few rooms that aren't beige or brown and my poor color-loving husband will not let me change them to something more muted :).  I think he'd rather have a wrong bright color than no color at all, and these are the little things that are not worth getting in fights about, right?   I personally love shades of brown, find them soothing, and able to coordinate with anything...then a few colored accessories are all you need for it to look passable.

Well, it's been time to paint the bathroom for a while, and I've been dreading it.  Even I did not want another beige room this time.  So, I picked neutral tile, white fixtures, and wood flooring.  Any color should work, right?  Theoretically, but I know my track record.  So, I decided to do something smart and find a shower curtain that would bring some bold pattern into the room, and combine colors I'm interested in trying with the beige of the tile and browns of faucets and floor.

Voila, on super discount at Kohl's this morning.  PERFECT.

And indeed, I think it will look great in the bathroom. Dark brown to match floor and faucets, light khaki to match shower tile, white to go with fixtures and beadboard and some spunky blues and greens.  I bought super-discount awesome light blue towels while at Kohl's and then headed over to Lowe's and picked the perfect green paint, a light shade, drawn right from the curtain.  Finally.  This is the way to decorate!!  I was so proud of myself.  (And Asher was only going crazy with all this shopping toward the end, so even that wasn't a disaster.)

Draped the shower curtain in the room to see if I still liked it...check.  (Floor is darkish brown wood, can't see it.)

Then started putting up a little paint just to make sure in the daylight (Reuel has to do the painting tonight...carpal tunnel OUCH during these last few weeks of preggo-ness).

I opened the can.

WHAT?!!!! 

I knew it was a disaster before the first brush stroke.  It was seriously perfect in the store.  I even conferred with two other women picking paint colors as I did.  But oh my, it is the color of newborn you-know-what in real life, and the sickly yellow-green next to the shower tile makes the particular shade of neutral in the tile appear quite pink.  I don't think that comes through in the pictures.  So, all neutrals are not created equal.  I think this tile is pinky-brown, and that does not work at all with the yellow-green paint.  On the other hand, the background of the shower curtain is pinky-brown-khaki.  So shouldn't that tie it all together??  I may just let the kids splatter paint the walls.  Seriously, if I did not get it right with this approach, it is just hopeless.  Do you know how many gallons of paint I have wasted in my life??  Sigh.

Maybe I can get away with a less yellow green (there's also a more olive green accenting the green flowers in the fabric).  But this little exercise has left me burned again.  Why didn't this work?  For any readers who are tsk-tsk-ing the shallowness and overworry about something as trivial as paint, I heartily agree.  Send me a color chip that works and I will gladly move on to something that deserves more attention than this :}  At least we have a working bathroom!!  :)