About the Color Converter
Type a colour in any format — #2F8F86, rgb(47, 143, 134), hsl(174, 51%, 37%) or a name like "teal" — or pick one with the colour picker, and get it in every format web designers and printers use.
The contrast ratios show whether text in this colour is readable: WCAG asks for at least 4.5 : 1 for normal text.