Description from Farrow & Ball
Card Room Green is named after the study-like rooms much favoured in the Victorian period and is unapologetic in its masculine feel. It really comes alive when contrasted with a warm neutral like Fawn or Stony Ground, as used in Victorian homes, but feels more powerful and contemporary when used with no contrasts at all. Dark Tones Undercoat.
For those who think this colour too drab, try with Fawn. Dark Tones undercoat.