{{infobox color|title=Biru ceraka|m=2212|source=[http://repositori.kemdikbud.go.id/1698/ Daftar Istilah Warna]<br>[[CrayolaWarna LLCweb|CrayolaX11]]|v=7387|s=3321|h=240214|k=1813|y=0|c=2221|textcolor=black|b=208222|g=162196|r=162176|hex=A2A2D0B0C4DE|caption=Bunga ''[[Ceraka tanjung|Plumbago auriculata]]''|image=Flora della Sardegna 120 (5)Plumbago-auriculata-flowers.JPG|isccname=Light purplish blue}}
'''Biru ceraka''' ({{lang-en|Flax blue; Bluelight bellsteel blue}}) adalah corak [[warna]] [[biru]] [[Lembayung (warna)Ungu|lembayungkeungu-unguan]]. Nama warna ini berasal dari tumbuhan marga ''[[Ceraka|Plumbago]]'' (ceraka), khususnya tumbuhan [[Ceraka tanjung|Plumbago auriculata]] (Ceraka tanjung) dari [[Afrika Selatan]] yang bunganya alamiah berwarna biru.<ref>{{Cite web|title=Plant Database|url=https://plantdatabase.kpu.ca/plant/plantDetail/1365}}</ref><ref>{{Cite web|date=2021-05-26|title=Plumbago auriculata {{!}} Grow and care of Blue Plumbago {{!}} skyflower -|url=https://naturebring.com/plumbago-auriculata-grow-and-care-of-blue-plumbago-plant/|language=en-US|access-date=2021-09-26}}</ref>
