A pale purple colour is generally known as 'lilac' after the bush.
Purple lilac: Syringa vulgaris
Larger lilac cultivar image
Cordate leaves of Syringa vulgaris
... leukemia[?] Acute febrile neutrophilic dermatosis[?] Acute idiopathic polyneuritis[?] Acute intermittent porphyria[?] Acute lymphoblastic leukem ...