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Blue Expressions: Moods, Loyalty, Quality, and Rarity

Explore several different meanings of “blue,” while avoiding assumptions about color and emotion.

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Words and Their Stories · 6:03

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Source: VOA Learning English · Words and Their Stories

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This episode explores how “blue” appears in expressions for sadness, loyalty, high quality, rarity, and unexpected news. The same color can suggest different ideas in different phrases. The phrase “blue mind” is presented as a coined expression, not a clinical term or a proven effect that everyone experiences near water.

Cultural note: Color associations vary between people and cultures; do not assume someone’s feelings from a color metaphor. “Blue chip” is also used in business and investing, but this language page is not financial advice. Word-origin explanations in short idiom stories are summaries, not definitive historical research.

Keep exploringOne color can point to very different ideas. The surrounding words help you tell whether “blue” means sad, trustworthy, excellent, rare, or surprising.

Phrase guide · 5 expressions

Explore the expressions

Original explanations and examples, created for learners. Save a card for later or hear the phrase spoken by your browser.

Mood and surprise

Describe sadness or unexpected news with color expressions.

have the blues

Meaning

Feel sad or low in mood.

Tone & use

Informal and figurative. It is not a diagnosis; use more direct, considerate language if someone describes serious distress.

Example

“I had the blues after my friend moved away, so we planned a weekly call.”

NegativeInformal / idiomatic

a bolt from the blue

Meaning

A sudden, unexpected event, usually an unpleasant one.

Tone & use

Often describes surprising news. It is figurative, not a literal weather report.

Example

“The announcement that the venue had closed came as a bolt from the blue.”

NegativeNeutral / idiomatic

Trust and quality

Recognize phrases for loyalty and excellence.

true blue

Meaning

Loyal, dependable, and faithful.

Tone & use

Usually describes a person, friend, or supporter. It can sound warm or a little old-fashioned.

Example

“Even when the project became difficult, her true-blue colleagues stayed to help.”

PositiveInformal / idiomatic

blue-ribbon

Meaning

Excellent or among the best.

Tone & use

Often used before a noun, such as “a blue-ribbon panel” or “a blue-ribbon restaurant.”

Example

“The town’s blue-ribbon bakery won praise for its careful service and fresh bread.”

PositiveNeutral / idiomatic

Rare events

Talk about something that happens infrequently.

once in a blue moon

Meaning

Very rarely.

Tone & use

An informal way to describe something infrequent. It usually does not refer to a literal moon event.

Example

“We only all have the same free evening once in a blue moon.”

NeutralInformal / idiomatic

Knowledge check

Try it

Choose the expression that best fits each situation.

Try it · Choose the best expression

1 of 3

Your group has the same free evening very rarely. Which expression fits?