Blue is the color of the sky and sea. It is often associated with depth and stability. It symbolizes trust, loyalty, wisdom, confidence, intelligence, faith, truth, and heaven. Blue is considered beneficial to the mind and body. It slows human metabolism and produces a calming effect.
1 Backlash (sociology), an adverse reaction to something that has gained prominence.  Backlash (pressure group), a UK group opposing the 2008 law criminalising possession of extreme pornography.
1. a strong reaction. 2. part of an income paid to a person having influence over the size or payment of the income, esp by some illegal arrangement. vb (adverb) 3. (intr) to have a strong reaction. 4. (intr) (esp of a gun) to recoil. 5. to pay a kickback to (someone)