Colour image obtained from the DR9 Legacy Survey of A76 (left) and A1307 (right). Superimposed, we plot contours corresponding to the X-ray surface brightness (green) and the isodensity galaxy distribution of likely cluster members (grey-blue). The BCG, ‘2’, ‘3’, ‘4’ and ‘5’ labels indicate the central bright cluster galaxy, and the other luminous galaxies. North is up and east to the left in both panels.