CSS utility

Shale CSS Utilities

Shale CSS utilities for #59656F: copy variables and classes for backgrounds, text, borders and surfaces, with RGB tokens and contrast guidance.

Color page #59656F WCAG

Preview Shale #59656F

Utility Classes

Background.bg-shale

Text.text-shale

Border.border-shale

Surface.surface-shale

CSS Snippet

:root {
  --color-shale: #59656F;
  --color-shale-rgb: 89 101 111;
  --color-shale-contrast: #FFFFFF;
}

.bg-shale { background-color: var(--color-shale); }
.text-shale { color: var(--color-shale); }
.border-shale { border-color: var(--color-shale); }
.surface-shale {
  background-color: var(--color-shale);
  color: var(--color-shale-contrast);
  border: 1px solid color-mix(in srgb, var(--color-shale), #111827 18%);
}
.shadow-shale { box-shadow: 0 18px 40px rgb(var(--color-shale-rgb) / 28%); }

Usage Examples

Surface cardShale uses #FFFFFF as its stronger standard foreground at 5.97:1.

Border accentUse #59656F as a cool blue outline, divider, or interface accent.

Text accentPlace #59656F on a checked contrasting surface before using it for text, links, or icons.

Implementation Notes

Best text color#FFFFFF

Black contrast3.52:1

White contrast5.97:1

RGB token89 101 111

Luminance0.1258

Black text3.52:1AA Fail

White text5.97:1AA Pass

cssVariablesReusable CSS custom properties

utilityClassesBackground, text, border, surface, and shadow classes

bestTextColorAccessible default foreground token

contrastBlack and white contrast ratios

wcagAA and AAA text color options

relatedEndpointsLinked machine-readable resources

Structured sections

CSS variables

{
  "color": "--color-shale: #59656F;",
  "rgb": "--color-shale-rgb: 89 101 111;",
  "contrast": "--color-shale-contrast: #FFFFFF;"
}

Utility classes

{
  "background": ".bg-shale",
  "text": ".text-shale",
  "border": ".border-shale",
  "surface": ".surface-shale",
  "shadow": ".shadow-shale"
}

Accessibility

{
  "bestTextColor": "#FFFFFF",
  "contrast": {
    "black": 3.52,
    "white": 5.97
  },
  "wcag": {
    "AA": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "AAA": []
  }
}

Implementation

{
  "useCases": [
    "CSS variables",
    "utility classes",
    "design system tokens",
    "UI surface styling",
    "accessible text pairing"
  ],
  "cssSnippet": ":root {\n  --color-shale: #59656F;\n  --color-shale-rgb: 89 101 111;\n  --color-shale-contrast: #FFFFFF;\n}\n\n.bg-shale { background-color: var(--color-shale); }\n.text-shale { color: var(--color-shale); }\n.border-shale { border-color: var(--color-shale); }\n.surface-shale {\n  background-color: var(--color-shale);\n  color: var(--color-shale-contrast);\n  border: 1px solid color-mix(in srgb, var(--color-shale), #111827 18%);\n}\n.shadow-shale { box-shadow: 0 18px 40px rgb(var(--color-shale-rgb) / 28%); }"
}

Related endpoints

[
  "https://www.colorsencyclopedia.com/api/css/colors/shale.json",
  "https://www.colorsencyclopedia.com/api/colors/shale.json"
]

Full JSON dataset

{
  "datasetVersion": "1.0.0",
  "slug": "shale",
  "name": "Shale",
  "hex": "#59656F",
  "rgb": [
    89,
    101,
    111
  ],
  "hsl": [
    207,
    11,
    39
  ],
  "cmyk": [
    20,
    9,
    0,
    56
  ],
  "luminance": 0.1258,
  "contrast": {
    "black": 3.52,
    "white": 5.97
  },
  "wcag": {
    "AA": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "AAA": []
  },
  "family": "blue",
  "temperature": "cool",
  "tone": [
    "muted"
  ],
  "bestTextColor": "#FFFFFF",
  "cssVariables": {
    "color": "--color-shale: #59656F;",
    "rgb": "--color-shale-rgb: 89 101 111;",
    "contrast": "--color-shale-contrast: #FFFFFF;"
  },
  "utilityClasses": {
    "background": ".bg-shale",
    "text": ".text-shale",
    "border": ".border-shale",
    "surface": ".surface-shale",
    "shadow": ".shadow-shale"
  },
  "cssSnippet": ":root {\n  --color-shale: #59656F;\n  --color-shale-rgb: 89 101 111;\n  --color-shale-contrast: #FFFFFF;\n}\n\n.bg-shale { background-color: var(--color-shale); }\n.text-shale { color: var(--color-shale); }\n.border-shale { border-color: var(--color-shale); }\n.surface-shale {\n  background-color: var(--color-shale);\n  color: var(--color-shale-contrast);\n  border: 1px solid color-mix(in srgb, var(--color-shale), #111827 18%);\n}\n.shadow-shale { box-shadow: 0 18px 40px rgb(var(--color-shale-rgb) / 28%); }",
  "useCases": [
    "CSS variables",
    "utility classes",
    "design system tokens",
    "UI surface styling",
    "accessible text pairing"
  ],
  "relatedEndpoints": [
    "https://www.colorsencyclopedia.com/api/css/colors/shale.json",
    "https://www.colorsencyclopedia.com/api/colors/shale.json"
  ],
  "url": "https://www.colorsencyclopedia.com/css/colors/shale/",
  "colorUrl": "https://www.colorsencyclopedia.com/colors/shale/",
  "hexUrl": "https://www.colorsencyclopedia.com/hex/59656f/",
  "apiUrl": "https://www.colorsencyclopedia.com/api/css/colors/shale.json"
}

Shale CSS Utilities

Utility Classes

CSS Snippet

Usage Examples

Implementation Notes

Machine-Readable Shale CSS Utilities (JSON)

Related CSS Color Guides