My grand dad (step ) was the Chief Petty Officer on the ground crew when the Hindenburg went down. We had several magazines touting the maiden voyage of the Hindenburg and lots of pictures of other dirigibles which were given to the Navel museum in San Diego. Everything I remember was in black and white. They had a fire a year or two after our donation. Don't know but you might contact them.
Unfortunately, There wouldn't be an actual color picture of the Hindenburg airship because in August 1936 when the Hindenburg was launched there were no color pictures. I have found tons of black and white ones on the internet but I haven't even found any reproductions in color. You will have to use your imagination for that one.
All known good photos of the Hindenburg are black-and-white. There are many colorized versions of the well known black-and-white photos (mostly of the crash), based on guesses and/or eyewitness accounts of the colors.