  By considering Kehagias-Sfetsos black hole in the framework of the
Ho\v{r}ava-Lifshitz gravity, we study the optical appearance of such black
holes surrounded by spherical accretion flow. For the static/infalling
spherical accretion flow, we compute the observed specific intensity as a
function of impact parameter. We also investigate the effect of the Ho\v{r}ava
parameter and accreting matter on the luminosity of shadows and photon rings.
It is found that an increase in the Ho\v{r}ava parameter decreases the shadow
size, while the shadows and photon rings luminosities increase. Moreover, we
constrain the Ho\v{r}ava parameter from the observational data reported by the
Event Horizon Telescope for M87* and Sgr A*.
