Translation guide
A deep, vivid blue pigment or color, named after the element cobalt. In Japanese, it is typically referred to by the loanword コバルトブルー or the traditional term 瑠璃色.
Referring to the specific shade of deep blue, whether in art, design, or everyday description.
The most common and direct way to say 'cobalt blue' in Japanese. It is a loanword from English and widely understood.
彼女はコバルトブルーのドレスを着ていた。
She was wearing a cobalt blue dress.
この絵の具はコバルトブルーです。
This paint is cobalt blue.
A traditional Japanese color name for a deep, lapis lazuli-like blue, often used in poetic or literary contexts. It is slightly more purplish or richer than typical cobalt blue but overlaps significantly.
Sometimes used as a shorthand for the color, but more commonly refers to the metal element. Can be ambiguous without context.
May be misunderstood as the metal cobalt rather than the color.
The lapis lazuli sky is beautiful.
A cobalt sky stretched out.