Install routine: text color
(checked with the development tool in Firefox)
darker grey (better: black), that has a much better contrast
grey font color with low contrast.
font-color: #858585 (contrast ratio: 3.7)
font-color: #757575 (contrast ratio: 4.5 => minimum ratio https://developer.mozilla.org/en-US/docs/Web/Accessibility/Understanding_WCAG/Perceivable/Color_contrast)