Comparison between our SBCR with mixed Johnson-2MASS photometries (red solid line), SBCR with converted 2MASS K_s photometry (green solid line), and Johnson-K photometry (blue solid line) for early-type stars. Light-gray dots are eclipsing binaries from Taormina et al. (2019). The orange dot shows the data for HD 149438 using the hipparcos parallax. See Sect. 5.2 for detailed information on the converted SBCRs.