M35 with Yellow Stars?

Hmmm ... after posting my first astro photos of star clusters a few nights ago I started thinking about the color of the stars in M35. As a relatively young cluster the stars in M35 should be on the blue side. After reviewing other images from sites such as AstroBin they are definitively blue. So, back to the drawing (imaging) board. Got to find out why my images are on the yellow side!