The Japanese name "鳥の子色" (torinoko-iro, "bird's egg color") is easily mistaken for chick-yellow, but it is actually a pale yellow resembling the color of eggshells — a traditional color name. The egg in question is specifically a hen's egg. This name has been used since before the Edo period, applied not only to fabric dyeing but also to paper dyeing. Another egg-related color in the Japanese tradition is "玉子色" (#fcd575, tamago-iro), which refers to the color of the egg yolk.