Okay, imagine the open sea - a proud ship is sailing towards you. When it comes closer you see it’s the SS Sterek - a ship not even icebergs can sink. It has set sail and the sails, well they are blue and orange.
Basically blue and orange is the color of sterek.
Let’s start with color theory
The colour wheel is a way of categorising colour, which is usually based on the primary colours of yellow, red and blue.
The main ways people use the colour wheel are to combine analogous colours (colours next to each other) or complimentary colours (colours exactly opposite each other). So red and orange are analogous, and orange and blue are complimentary. Red and blue are neither, so they are considered clashing colours.
okay so how does this relate to sterek?
Blue has been associated with derek because he’s a creature of the night and he’s also quite sad/blue which is naturally given the shitty hand he’s been dealt so far. He also had blue beta eyes.
Orange has been associated with stiles because he’s “human” and a creature of the day, happiness.
the thought of blue and orange as the sterek colors was born with this
When stiles made Derek participate in an unwanted striptease to get Danny to cooperate in 1x09
We get another reference to orange and blue in episode 2x03 when Stiles is trying to woo Lydia at the ice rink. She’s cold and he offers her an extra shirt he has in his backpack. It’s orange and Lydia refuses because she’s wearing blue and claims that it clashes. Which it obviously don’t since they’re complementary.
Lydia: Could it be any colder in here?
Lydia: I’m wearing blue. Orange and blue, not a good combination.
Stiles: But it’s the colors of the mets. Okay, um, maybe orange and blue is not the best. Right, um, you know, sometimes there’s other things you wouldn’t think would be a good combination end up turning out to be, like, a perfect combination, you know, like two people together Who nobody ever thought would be together ever.
At the time it’s clear Stiles was hinting at the combination of Lydia and himself. But with the reference to blue and orange this can be seen as foreshadowing sterek.
Derek and Stiles are complimentary — they go together because they are opposites (opposites attract). I don’t think it’s a coincident that these colors tend to crop up in the show in relation to them
We also see this used in the lightning of scenes. Derek is often seen in bluish light, he’s struck by one tragedy after another and is not really in high spirits.
Stiles most often is in golden/orange light
(none of these pictures have been adjusted in any way)
In the latest episode we got a scene with both blue and orange lightning which clearly is significant and linked to sterek
This meta is also interesting