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.

Alchemy: Lesser Transmutations
RecipeMakesReagentsNeedsSkill-up
Transmute: Iron to GoldTaught by Recipe: Transmute Iron to Gold, requires 225
Gold BarQuantity not confirmed
  • Philosopher's Stone
Yellow 240Grey 280
Transmute: Mithril to TruesilverTaught by Recipe: Transmute Mithril to Truesilver, requires 225
Truesilver BarQuantity not confirmed
  • Philosopher's Stone
Yellow 240Grey 280
Transmute: Air to FireTaught by Recipe: Transmute Air to Fire, requires 275
Essence of FireQuantity not confirmed
  • Philosopher's Stone
Yellow 275Grey 290
Transmute: Earth to LifeTaught by Recipe: Transmute Earth to Life, requires 275
Living EssenceQuantity not confirmed
  • Philosopher's Stone
Yellow 275Grey 290
Transmute: Earth to WaterTaught by Recipe: Transmute Earth to Water, requires 275
Essence of WaterQuantity not confirmed
  • Philosopher's Stone
Yellow 275Grey 290
Transmute: Fire to EarthTaught by Recipe: Transmute Fire to Earth, requires 275
Essence of EarthQuantity not confirmed
  • Philosopher's Stone
Yellow 275Grey 290
Transmute: Life to EarthTaught by Recipe: Transmute Life to Earth, requires 275
Essence of EarthQuantity not confirmed
  • Philosopher's Stone
Yellow 275Grey 290
Transmute: Undeath to WaterTaught by Recipe: Transmute Undeath to Water, requires 275
Essence of WaterQuantity not confirmed
  • Philosopher's Stone
Yellow 275Grey 290
Transmute: Water to AirTaught by Recipe: Transmute Water to Air, requires 275
Essence of AirQuantity not confirmed
  • Philosopher's Stone
Yellow 275Grey 290
Transmute: Water to UndeathTaught by Recipe: Transmute Water to Undeath, requires 275
Essence of UndeathQuantity not confirmed
  • Philosopher's Stone
Yellow 275Grey 290
Transmute: Elemental FireTaught by Recipe: Transmute Elemental Fire, requires 300
3 × Elemental Fire
  • Philosopher's Stone
Yellow 301Grey 310

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