Dependence of masses of hybrid compact stars in solar units on their central density for EoS A (upper panel) and EoS B (lower panel). Solid (black online) lines show the non-rotating sequence. The dash-dotted (red online) lines show the maximally fast rotating sequence. The horizontal dashed (blue online) lines show constant rest-mass sequences, some of which are labeled by the value of their rest mass (in solar units). The mass step between two sequential evolutionary sequences is 0.2 M_⊙.