Most pencils in The USA are a yellow colour. This was started by the Hardtmuth company in 1890 with their Koh-I-Noor brand pencil. Before this pencils were usually just unpainted wood.
But in other countries different colours are more popular. For example in Germany most pencils are green, and in Australia they are red.
thiNK TWice 
its a no.3 colour we should not comment so much for it
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the green pencil, Faber castle are popular at Indonesia
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Thanks speechspotspot, this is very good information.
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We have blue pencils in Norway, among others. In the starter kit we buy in first year at architect school there are blue pencils:)
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Blue in Norway, thanks bitavkake, there are a lot of people who visit this site who will appreciate this information.
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typical color here in finland. and if something is imported to finland it must be in sweden too.
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Appreciate the information tuomas, thanks.
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I believe that the pencils shown here are Staedtler brand pencils from Germany. Their popularity can mostly likely be attributed to their widespread use by draughtsmen (draftsmen).
Up until the late 80’s architects, engineers and designers still had to do drawings by hand. Anyone who needed to draw something more likely than not had to resort to using a pencil, and these blue ones are recognized for their quality. Computers have since started to displace the ubiquitous blue pencil. I’ve even shifted over to mechanical pencils and lead holders.
Personally I preferred working with the 3H, HB and the 2B pencils. What I’m more curious about is where the lead softness/darkness classification comes from. I know that it ranges from EE/EB to the really soft lead, to the newer 8B soft graphite to the harder 6H ones, but more information would be wonderful.
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Actually this was a genuine question, I have no idea of the answer.
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The UK?
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