'Button Willow' is right next door to pure yellow, and as you can see from the graphic showing all the Vibrant yellows, it is the only one that tips toward green, before we immediately reach the Vibrant greens. If you need a yellow that has just that little bit of green (I guess you would call it a lemon yellow) this is it. The blue in the formula comes through gradually -- Level 1 looks pretty neutral, the middle levels are just a cool yellow, then by level 6 you can really see the blue showing through.
NOTE: In general, use the individual color image as your guide. I have devoted many, many hours to adjusting the images to match the actual wool color, but the usual disclaimers (about colors appearing different on different monitors) apply.
HOW TO ORDER
The standard minimum size available at Ram in the Thicket is a 3" X 18" increment, and each of those represents one "item". So from each listing, order the total number of increments of that color you would like. If you order more than one 'item' of any color, I will send it out as one large piece.