postal blue

noun

A specific, deep-toned paint shade; the dark blue color of United States Postal Service (USPS) collection boxes and, historically, mail carrier uniforms.

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Meanings

nounpostal blue (plural postal blues)

plural postal blues

  1. A specific, deep-toned paint shade; the dark blue color of United States Postal Service (USPS) collection boxes and, historically, mail carrier uniforms.
Cite this entry
APA

postal blue. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/postal%20blue

MLA

“postal blue.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/postal%20blue. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “postal blue,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/postal%20blue.

Source: postal blue on Wiktionary, CC BY-SA 4.0.