How about something like SW Halcyon green? A pretty color but toned down a bit.

Sitting here with the SW deck...Halcyon is a good green.

Your example looks a bit on the teal side on my monitor (i.e. SW Tantalizing Teal)?

There's SW Relish which is a true green. I also like SW Aloe with a touch of blue in it but not all the way teal.

Hi! I think an easier way to choose a paint color is to buy an accent item you like in a mint color, place it in the room, see how you all like it, then have the paint matched! Here are a few ideas:
http://deciture.com/shop/lighting/world-market/gray-and-mint-geo-accent-lamp-shade/

http://deciture.com/shop/furniture/world-market/green-square-metal-accent-table/

Hope this helps!

And definitely get a sample of any color you are seriously considering. The colors take on their own life with different lighting and sometimes what looks like a great color can be way intense when painted in a larger space.

She will not be happy with this. They are lighter aqua, sea salts by Benjamin Moore is good. But only way to know is get some sample cans and put on her wall. Look at it in your light. Paint a big 3x3 ft square. Only way to know. All trim should be white. Maybe a wallpaper with this color in it on wall behind bed only might be nice. All paint stores carry wallpaper books.

Please don't try and pick a color off a computer. Never the true color.

You need to go MUCH LIGHTER!!! There is a chic mint green that is trendy right now, and that isn't it....I would look at, http://www.sherwin-williams.com/architects-specifiers-designers/color/find-and-explore-colors/paint-colors-by-family/SW6743-mint-condition/

Sherwin Williams SW 6743 Mint Condition, and then pop it with darker and fun accessories. If you go too dark on the walls, she will tire of it quicker, she can pair this lighter mint with many different color combos, orange, gray, yellow, navy, peach creams etc...Good Luck!

Here is an image for SW 6743 Mint Condition :)