{
  "source": "https://www.w3.org/WAI/WCAG22/Understanding/contrast-minimum.html",
  "formula": "(max(Lfg,Lbg)+0.05)/(min(Lfg,Lbg)+0.05); L=0.2126*R+0.7152*G+0.0722*B; linear channel c/12.92 when c<=0.04045, otherwise ((c+0.055)/1.055)^2.4; c=8bit/255",
  "inputs": "Authored logo fills and white; opaque sRGB CSS colors",
  "results": [
    {
      "foreground": "#FFFFFF",
      "background": "#EE6C4D",
      "luminance_foreground": 1.0,
      "luminance_background": 0.29438088979680616,
      "ratio": 3.048949669128063
    },
    {
      "foreground": "#182A3B",
      "background": "#EE6C4D",
      "luminance_foreground": 0.02165885748303019,
      "luminance_background": 0.29438088979680616,
      "ratio": 4.805838411230046
    },
    {
      "foreground": "#FFFFFF",
      "background": "#157F7C",
      "luminance_foreground": 1.0,
      "luminance_background": 0.16793409343887764,
      "ratio": 4.8179703479689175
    },
    {
      "foreground": "#182A3B",
      "background": "#FFFFFF",
      "luminance_foreground": 0.02165885748303019,
      "luminance_background": 1.0,
      "ratio": 14.652759433802787
    }
  ]
}