Cindy, you got to the heart of my confusion about yellow ... and thanks for all those helpful daylily pictures! Whenever I try to settle on a yellow that might fit with my other colors ... I get awash in petals that range from beige to ivory to green to school bus orangey to burnt gold...often even to light lavenders, pinks, peaches and beyond.
Is it possible that yellow is like daylily blue ... not a natural occurrence? Maybe it really is only species Gold and Red after all, and hybridizers are just gifted with teasing out all the colors in-between.
But then ... I see the next picture, like Big Smile, and I think ... well, that's got some true pale yellow in it!
What do you think is your yellowist yellow, with your own eyes on the garden?