Friday, October 02, 2026

What colour is a blue brick?

 

Picturesque

Sometimes, work means I have to do some odd things. A few weeks ago, there was an emergency run to buy pencil crayons. Yes, coloured pencils. 

For the station building project I was working on, I had to colour in some blue engineering bricks. Now, in the past, I'd been told "Prussian Blue" was the colour. I tried it, and it very much wasn't. Far too blue. 

That being the case, the project ground to a halt until I located the correct colour, hence a hurried trip to my local art shop, Picturesque, in Warwick, with some photos of real buildings. 

Chosing crayons

Now, the people running the shop are used to oddballs coming in, and didn't bat an eye at someone testing every flavour of grey in the rack on a bit of card kept from the kit fret. It took a long while for me to work through all the ranges and settle on a selection. The bricks are a lot greyer than you think, but with a hint of blue. Sadly, no one makes a "blue brick" pencil to make things easier for me. 

Grey crayons

In the end, I came away with a few: 

  • Derwent Blue Grey
  • Stabilo CarbOthello
  • Derwent Mid Grey
  • Derwent Steel Blue
  • Derwent Iron Blue
  • Derwent Payne's Grey

Eventually, a mix of three randomly rubbed on the etched bricks did the job, or at least to my eyes. It's all subjective anyway...

 

1 comment:

MikeB said...

I have some very ancient small roof tiles on my porch. When I investigated they were made in the early 1900's and the sort of blue colour happens due to 'salt glazing' the clay stuff they are made out of. It's how bricks of the time sometimes had a blue colour. The point being the colour is not uniform and many of my tiles start a very dark maroon on the edges then go an undescribable blue towards the centre. They became popular at the time due to being more expensive to produce and people wanting their houses to look as expensive and posh as they could. Hope this helps a bit.