Each recipe is orange until its yellow rank and grey from its grey rank. When the ranks differ, it turns green somewhere between the two; the client files give both ranks but not that point. Equal ranks go straight to grey.

Blacksmithing: Inert Enchanting Rods
RecipeMakesReagentsNeedsSkill-up
Copper Rod
Copper Rod
  • Blacksmith Hammer
  • Anvil
Yellow 10Grey 15
Silver Rod
Silver Rod
  • Blacksmith Hammer
  • Anvil
Yellow 80Grey 85
Golden Rod
Golden Rod
  • Blacksmith Hammer
  • Anvil
Yellow 130Grey 135
Truesilver Rod
Truesilver Rod
  • Blacksmith Hammer
  • Anvil
Yellow 180Grey 185
Arcanite Rod
Arcanite Rod
  • Blacksmith Hammer
  • Anvil
Yellow 250Grey 260

From the Forever beta client files, build 1.60.1.70630: the SkillLine, SkillLineAbility, TradeSkillCategory, SpellReagents, SpellEffect, SpellTotems, SpellCastingRequirements and ItemEffect tables.