I have those pants, and I'll tell you they're both the same. The only difference is mine have the round buttons.
The problem is that they both used different cameras and light settings to take the pictures, so makes it SEEM like they are different color.
Number one has the material how it actually looks in real life, but the color is more leaning towards the second set.
The yellow is on number one also, it's just at a weird angle, and the picture isn't good contrast, and they obviously used photoshop to get rid of some of the yellows, making it look fadded.
Bottom line- same shit different photographer.