So many reasons for the differences in the color of images already posted. I find early morning images in shade can lean toward blue while images taken in full sun mid day can look washed out. Evening images will pick up warmer tones with hints of yellow to light orange. "Blue" color can be very blue early morning in shade. As soon as the sun hits the bloom the blue turns toward purple.
First image is Point of Divergence with a "blue" eyed sdlg at 8:57am in shade.
Same two blooms in sun at 9:22am.
I always try to adjust the camera to show what I am seeing when taking images. Some dayliliy colors can be extremely difficult to capture no matter what you do. Another little hint for looking at images is to check the anthers. Anthers that are still closed were taken early morning.
