If you ever wondered why blueprints were blue and not black or red or white or brown or any other color than blue, well, it’s not because architects really like the color but because the technique in ...

Reviews and recommendations are unbiased and products are independently selected. Postmedia may earn an affiliate commission from purchases made through links on this page. “It’s a colour that felt ...

At one point in history, blueprints were actually blue. Now, if you even see a dead tree version of plans or assemblages, they’re probably printed off with a plotter or large format printer. You can, ...