Other forms: pastels
A pastel is a soft, pale color. If your favorite shades are light blue and pale pink, you can say that you prefer pastels.
Pastel is also an adjective describing a soft color, like a pastel shade of green or a pastel lavender dress. Another kind of pastel is the artist's crayon made of powdered pigments bound together in a solid stick, which produce soft, blended colors. Starting in the late 1800s, pastel was used to mean "soft shade" as well as "soft art medium." In French, pastel means "crayon."