Steam under hood and fluid under car

Was driving the car home and things were fine. No check engine light, no other warning lights, car not overheating, all was well. Get home and as I back my car into the driveway the car cuts off, white steam is coming from under the hood (it was near the back of the engine). I got out of the car and saw in the front there was "fluid" running from under the car (it was flowing not just a drip). I waited maybe 5 minutes before opening the hood since the engine was hot and the steam cleared)I saw some wetness under the hood and the car would crank/turn over but it would not start. I'm attaching a photo of what I saw when I say "wetness". I'm not sure what it is but I did not smell anything (no burn smell, no sweet smell). It was nearly night but the fluid looked orange and "rainbowed" if that makes sense. I called a tow to come get the car but I'm curious to any idea what this is. Thanks!