What I realized I need in my life: Bee's professional thoughts on all that Blue Light, and possibly why Sherlock looks so damn tan in some shots?
Blue/cool tones connote:
Winter, coldness, harshness, cold water, evening, sadness, science, medicine, technology, industrial, nighttime (moonlight is generally shown as blueish), COLD.
The most important distinction in the color world is warm/cool. Warm is day, cool is night. Neutral colors or earth tones are basically invisible/background.
Sherlock could be tan because of:
Plot reasons (he spent a lot of time in the desert?)
An intentional color grading decision in post production (for reasons I cannot predict)
A bad color grading decision in post production (always possible too)
Benedict spent too much time in California working on Doctor Strange?
The colors for the promos being pumped up in saturation to pop out and the actual episode might be color graded a bit differently
The director/DP just Likes It That Way
Maybe–MAYBE–he’s “warming up” in this scene, emotionally
All of these reasons are possible. We just don’t have enough evidence of what the rest of the episode is going to look like. (Well, we might, but I’ve been avoiding Setlock as I like surprises.) I can’t go by one isolated clip. However, the promo photos and clips I have seen do have an overall blue/cool tone to them. Take that as you will. Ask me after episode 3 I guess.
IF I LIVE THAT LONG.