olive drabとは

使用する際の注意点

• The internet colour (X11) called olive drab would rarely be meant when used unqualified, especially when talking about clothing or painted physical objects. The X11 colour is much brighter than the dark matt colour usually meant.
• US military usage refers to a colour distinctly more brown (FS 595) than the green of British military usage (BS 381C).

形容詞

olive drab (not comparable)

1. Of a greyish green colour, like that of a ripe green olive.

参考

• Appendix:Colors