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.
push back. v. 1. To move or force something backward by applying pressure: Push that glass back from the edge of the table. The police managed to push back the protestors by using tear gas. 2. To delay something until a future time; postpone something: We should push back the deadline so that we have more time to work on the project.