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.

Tailoring: Specialty Bags
RecipeMakesReagentsNeedsSkill-up
Linen Reagent BagTaught by Pattern: Linen Reagent Bag, requires 5
Linen Reagent BagYellow 30Grey 65
Woolen Reagent BagTaught by Pattern: Woolen Reagent Bag, requires 70
Woolen Reagent BagYellow 75Grey 110
Silk Reagent BagTaught by Pattern: Silk Reagent Bag, requires 125
Silk Reagent BagYellow 135Grey 140
Mageweave Reagent BagTaught by Pattern: Mageweave Reagent Bag, requires 190
Mageweave Reagent BagYellow 205Grey 215
Enchanted Mageweave PouchTaught by Pattern: Enchanted Mageweave Pouch, requires 190
Enchanted Mageweave PouchYellow 205Grey 235
Runecloth Reagent BagTaught by Pattern: Runecloth Reagent Bag, requires 215
Runecloth Reagent BagYellow 230Grey 260
Soul PouchTaught by Pattern: Soul Pouch, requires 215
Soul PouchYellow 230Grey 260
Cenarion Herb BagTaught by Pattern: Cenarion Herb Bag, requires 230
Cenarion Herb BagYellow 245Grey 275
Enchanted Runecloth BagTaught by Pattern: Enchanted Runecloth Bag, requires 230
Enchanted Runecloth BagYellow 245Grey 275
Felcloth BagTaught by Unrevealed item #21369
Felcloth Bag
  • Spinning Wheel
Yellow 260Grey 290
Big Bag of EnchantmentTaught by Pattern: Big Bag of Enchantment, requires 255
Big Bag of EnchantmentYellow 270Grey 300
Mooncloth Reagent BagTaught by Pattern: Mooncloth Reagent Bag, requires 255
Mooncloth Reagent BagYellow 270Grey 300
Satchel of CenariusTaught by Pattern: Satchel of Cenarius, requires 255
Satchel of CenariusYellow 270Grey 300
Felblood Soul BagTaught by Pattern: Felblood Soul Bag, requires 300
Felblood Soul Bag
  • Loom
Yellow 310Grey 325
Bottomless Reagent BagTaught by Pattern: Bottomless Reagent Bag, requires 300
Bottomless Reagent Bag
  • Loom
Yellow 315Grey 345
Core Felcloth BagTaught by Pattern: Core Felcloth Bag, requires 300
Core Felcloth BagYellow 315Grey 345

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