No, yellow is not exclusively a baby girl color.
Yellow: A Gender-Neutral Choice
Yellow is widely considered a gender-neutral color. Many sources confirm this. For example, one source states that yellow is "a universally recognized gender-neutral color." [Reference: Source stating yellow is a universally recognized gender-neutral color (date: 20-Jul-2022)] Parents often choose yellow items for their babies before knowing the gender. This makes it suitable for both baby boys and baby girls. It pairs well with other neutral colors like brown, green, and white.
Several online discussions also support this view. Reddit threads show people using yellow for baby items regardless of the child's sex. [References: Reddit threads confirming yellow's gender-neutral use for baby items]. One user stated that "Yellow is traditionally the neutral color used when you don't know if it's for a boy or a girl." [Reference: Reddit thread from January 19, 2023].
While some sources highlight color trends that lean toward pink for girls and blue for boys, yellow consistently remains outside these traditional gender assignments. [Reference: Source discussing the historical association of pink and blue with genders]. The association of colors with gender is a social construct, not an inherent characteristic of the colors themselves.
In summary, the color yellow is an appropriate choice for baby clothing, blankets, and other items irrespective of the baby's gender.