Tailwind sky-900
#0c4a6e — every format, its contrast behaviour, and the rest of the sky scale.
#0c4a6e
Hex
#0c4a6eRGB
rgb(12 74 110)HSL
hsl(202 80% 24%)Background class
bg-sky-900Text class
text-sky-900Border class
border-sky-900On white: 9.46:1 — passes AA for text
On slate-900: 1.89:1 — decoration only