Here's a
link to a photo I took of the 84250-08030-B0 ('06 Sienna light grey) buttons installed on an '05 light charcoal interior Sequoia.
FWIW, I think the buttons look more blueish-green in Paul's photo than they are in person.
The left side buttons better show the color as the right side is reflecting more flash.
My Sequoia page.