What does it mean bluish color?

Blue:

Positive:

* Calmness

* Serenity

* Trust

* Loyalty

* Wisdom

* Intelligence

* Faith-based

* Heaven (in many religious traditions)

* Tranquility

Negative:

* Coldness

* Detachment

* Aloofness

* Impersonality

* Uncaring

* Depressing

* Sadness

* Grief