The Pituitary gland is blue(not cyan), its the "body" to the indigo foreheads "surface"... surfaces obscure bodies if equal.
The less crystalized they are, the darker they appear.
The crowns color is a combination of indigo and soft pink, aka violet... but it rapidly turns colorless as it crystalizes (as opposed to the first energy, it stays black as its incapable of crystalizing even slightly; only quantity matter for its effect).
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_Orange_GreenBlueIndigoVioletPink
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