How do I know this… well, I tripped and spilled about a cup of paint on the carpet today while I was finishing the playroom. Unfortunately, I do not have pictures of this little mishap, although getting the camera did cross my mind in the initial moments of panic.
When the paint first spilled I grabbed the towel next to me and put it directly on the spill. I was trying to blot it up, this worked a little bit, but there was too much paint. I did this several times, blotting, not scrubbing, and was able to remove the top layer of paint. While I was doing this I was thinking that there had to be a way to remove this paint, and then I thought about how you remove paint from a paint brush… water! I called for every rag in the house and a pitcher of water. I poured water on the spill zone and then blotted it up, I continued this process for about 30 minutes, I could have gone longer but we ran out of rags. I removed about 90% of the paint using this method. Fortunately I spilled bright yellow paint on beige carpet so it did blend once the paint had faded significantly.
After my constant flooding of the carpet I put a fan on the carpet to help dry it out. 
You can see there is a little yellow tint in a few parts of the carpet. The paint was sunshine yellow, so I was happy with the results. I think if I would have spent more time adding water and blotting I probably would have been able to get it all out.
My husband has spilled black dye on our beige carpet before while building a mandolin. We used acetone & it came right up (even from dried spots). So if your carpet is more yellow than you prefer once it dries, try pouring a little acetone on it! I would recommend blotting a spot that is concealed first to ensure it doesn’t bleach though!
Thank goodness it was yellow on a beige, better than purple on beige!
Either you did a great job cleaning it up, or I’m blind, because I didn’t see any yellow at all!
I also don’t see any yellow so you did great!
I think I heard Martha Stewart suggests the same thing. Something to do with diluting the stain at the same time. I have yet to try it but if it lifts yellow paint it must work!!
I remember a friend of mine had just moved into a new-build house with brand new beige carpets throughout.
Her husband came home late after having to take the car for a tyre change – and walked oil across the lounge.
Big cartoon-style footprints across her lovely lounge.
Wow – I can’t even see the paint at all Tying ot figue out how to get bubbles out of the carpent now!! My dd poured a bottle all over the carpet.
Oh lands! I am so glad you got it all out!! I see no yellow on my monitor!! *applause*
Good to know! I’m painting my house and using colors that I’m sure won’t blend nearly as well on my carpet and with four little ones running around, this has been my fear. I’ll be keeping the towels and water nearby next time I get to painting : )
You did a great job…I can’t even see any yellow! My daughter spilled purple fabric paint on the carpet and then put a basket on top of the stain….after she tried to scrub it up with toilet paper. I didn’t find it for at least 5 hours so it was completely dry. Ugh! So glad that I was still able to get it out!! http://ahomemadebykiki.blogspot.com/2010/10/so-long-spot-shot.html
Gosh, you’re good. I don’t see ANY paint!