Blue

 Blue often symbolizes calmness, stability, and trust, and is associated with the sky and sea. It can also represent depth and tranquility. The trend of blue for boys became popular in the mid-20th century, influenced by marketing and societal trends. Before that, pink was actually more commonly associated with boys. Research shows blue can reduce stress, enhance productivity, and evoke different emotions based on its shade. Light blue can create a sense of peace, while dark blue can evoke depth and mystery.

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  "blue on blue"

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  "blue ain't your color"

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  "BUT I'M SO BLUE"

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  "blue looks good on the sky"

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  "my baby blue"

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  "pretty blue eyes"

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  "hold on to me , blue?"

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  "and i'm still so blue"

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  "TRUE BLUE"

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  " oh, blue angel"