The H-R diagram of NGC 2627. The left panel contains a PARSEC isochrone with an age of 1.77 Gyr and a distance of 1.84 kpc, along with a zero-age main sequence (ZAMS), which is constructed by stitching the ZAMS of log(age/yr) = 8.0, 8.5, and 9.0. We have shown the cool and hot companions of BSS3, the YSS, the RC star, and the binary candidates, along with the hot BSS companions of other open clusters. Moreover, the objects with a single-component fit in NGC 2627 are shown with the mentioned labels. The WD cooling curves of different masses are also shown as various gray curves. The right panel shows the hot companions of the above-mentioned objects lying on the cooling curves of WDs of different ages, indicating their approximate cooling ages.