1. Of the colour of slate or granite
   "the slaty sky of dawn"
   - slate-grey [Brit, Cdn], slate-gray [US], slaty-grey [Brit, Cdn], slaty-gray [US], slatey, stone-grey [Brit, Cdn], stone-gray [US]

See also: achromatic, neutral

• yellow chestnut oak
• yellow cleavers
• yellow clintonia
• yellow colicroot
• yellow cypress
• Yellow Delicious
• yellow dock
• yellow dwarf
• yellow dwarf of potato
• yellow fever
• yellow flag
• yellow foxglove
• yellow foxtail
• yellow giant hyssop
• yellow globe lily
• yellow goatfish
• yellow granadilla
• yellow green
• yellow gurnard
• yellow hawkweed
• yellow henbane
• yellow honeysuckle
• yellow horned poppy
• yellow hornet
• yellow iris