| on the money(expression, idiom, clay, grey, heather) |
| on track(expression, clay, grey, heather) |
| onyx(heather, charcoal, starless) |
| overcast(dull, leaden, steely) |
| piceous(heather, charcoal, starless) |
| pitch-black(heather, charcoal, starless) |
| pitch-dark(heather, charcoal, starless) |
| pitch-dark pitchy(expression, heather, charcoal, starless) |
| pitch dark(expression, heather, charcoal, starless) |
| pitchy(heather, charcoal, starless) |
| proper(clay, grey, heather) |
| raven(heather, charcoal, starless) |
| right as rain(expression, idiom, clay, grey, heather) |
| rocker(clay, grey, heather) |
| silver(adjective, dull, leaden, steely) |
| slater(adjective, lead, leaden, clay, mousy) |
| sloe(heather, charcoal, starless) |
| sombre(heather, charcoal, starless) |
| starless(heather, charcoal) |
| steely(dull, leaden) |