There isn't too much written on the web about vdB15 (and vdB14) but from what I can glean the immediately adjacent emission nebula is faintly red (much less so than more distant and off to the Soul). From Steve Cannistra's website Starry Wonders: "This beautiful pair of reflection nebulae are a small part of a large dust cloud in Camelopardalis. They contain both reflection (blue) and emission (red) components, although the emission component is subtle and can be seen as the peripheral pale red regions in the above LRGB image. VDB 15 is the large nebula on the left, surrounding the magnitude 5 central star C Cam, while VDB14 is the sickle-shaped nebula on the right, next to the magnitude 4 star B Cam (to its lower right). What makes this image one of my favorites is the widefield views, available in the links above. The abundant, colorful stars in this field are very dramatic, and there is an occasional hint of blue nebulosity surrounding some of them (see the star in the lower right on the widefield views). In addition, the widefield view makes it easy to appreciate an obvious drop off in star density on the left hand side of the image (due to intervening dust)."
From Don Goldman's Astrodon site, Don describes thus: "Description vdB 15 (and neighboring vdB 14) are elongated reflection nebula in Camelopardalis, each extending for ~0.8 degree in the N-S direction. They are both illuminated by two supergiant stars, HD 21291 (B9 Ia) and HD 21389 (A0 Ia) as part of the large Cam OB1 association at a distance of ~3,000 light years - an area of new star formation. vdB 15 (and 14) are classified as refleciton nebula. However, there is a strong red component in the cloud structure and as a result, the object has a pink hue. This could possibly be from extended red emission from H-a emitting stars in the general vicinity, similar to IC59 and IC63."
This an LRGB image taken with my WO FLT132 at F5.6; 10 Micron GM1000HPS; QSI683-wsg8; Astrodon LRGB filters; total integration 8.9hrs. December 2016.