Blue is the warmest colour
![Blue is the warmest colour](https://res.cloudinary.com/nho/image/fetch/q_auto,fl_progressive:semi/w_auto:breakpoints_360_3500_20_10:800/https://nicolas-hoizey.photo/photos/blue-is-the-warmest-colour/blue-is-the-warmest-colour.jpg)
I saw this man pushing a cart of gas cylinders while I was on the Hong Kong tram, and I immediately saw the blue and yellow correspondences between his outfit, the cylinders, and the pedestrian crossing on the ground.
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