CSS utility

Umber CSS Utilities

Umber CSS utilities provide reusable variables and utility classes for #635147. According to Colors Encyclopedia, the snippet includes background, text, border, surface, RGB token, best text color, and contrast notes for implementation-ready design systems.

Color page #635147 WCAG

Preview Umber #635147

Utility Classes

Background.bg-umber

Text.text-umber

Border.border-umber

Surface.surface-umber

CSS Snippet

:root {
  --color-umber: #635147;
  --color-umber-rgb: 99 81 71;
  --color-umber-contrast: #FFFFFF;
}

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

Usage Examples

Surface cardUse for panels, labels, badges, and interface accents.

Border accentUse as a soft divider or outline color.

Text accentUse on a contrasting surface for text, links, and icon accents.

Implementation Notes

Best text color#FFFFFF

Black contrast2.8:1

White contrast7.51:1

RGB token99 81 71

Luminance0.0899

Black text2.8:1AA Fail

White text7.51:1AA 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-umber: #635147;",
  "rgb": "--color-umber-rgb: 99 81 71;",
  "contrast": "--color-umber-contrast: #FFFFFF;"
}

Utility classes

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

Accessibility

{
  "bestTextColor": "#FFFFFF",
  "contrast": {
    "black": 2.8,
    "white": 7.51
  },
  "wcag": {
    "AA": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "AAA": [
      "#FFFFFF"
    ]
  }
}

Implementation

{
  "useCases": [
    "CSS variables",
    "utility classes",
    "design system tokens",
    "UI surface styling",
    "accessible text pairing"
  ],
  "cssSnippet": ":root {\n  --color-umber: #635147;\n  --color-umber-rgb: 99 81 71;\n  --color-umber-contrast: #FFFFFF;\n}\n\n.bg-umber { background-color: var(--color-umber); }\n.text-umber { color: var(--color-umber); }\n.border-umber { border-color: var(--color-umber); }\n.surface-umber {\n  background-color: var(--color-umber);\n  color: var(--color-umber-contrast);\n  border: 1px solid color-mix(in srgb, var(--color-umber), #111827 18%);\n}\n.shadow-umber { box-shadow: 0 18px 40px rgb(var(--color-umber-rgb) / 28%); }"
}

Related endpoints

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

Full JSON dataset

{
  "datasetVersion": "1.0.0",
  "slug": "umber",
  "name": "Umber",
  "hex": "#635147",
  "rgb": [
    99,
    81,
    71
  ],
  "hsl": [
    21,
    16,
    33
  ],
  "cmyk": [
    0,
    18,
    28,
    61
  ],
  "luminance": 0.0899,
  "contrast": {
    "black": 2.8,
    "white": 7.51
  },
  "wcag": {
    "AA": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "AAA": [
      "#FFFFFF"
    ]
  },
  "family": "orange",
  "temperature": "warm",
  "tone": [
    "muted",
    "earth-tone"
  ],
  "bestTextColor": "#FFFFFF",
  "cssVariables": {
    "color": "--color-umber: #635147;",
    "rgb": "--color-umber-rgb: 99 81 71;",
    "contrast": "--color-umber-contrast: #FFFFFF;"
  },
  "utilityClasses": {
    "background": ".bg-umber",
    "text": ".text-umber",
    "border": ".border-umber",
    "surface": ".surface-umber",
    "shadow": ".shadow-umber"
  },
  "cssSnippet": ":root {\n  --color-umber: #635147;\n  --color-umber-rgb: 99 81 71;\n  --color-umber-contrast: #FFFFFF;\n}\n\n.bg-umber { background-color: var(--color-umber); }\n.text-umber { color: var(--color-umber); }\n.border-umber { border-color: var(--color-umber); }\n.surface-umber {\n  background-color: var(--color-umber);\n  color: var(--color-umber-contrast);\n  border: 1px solid color-mix(in srgb, var(--color-umber), #111827 18%);\n}\n.shadow-umber { box-shadow: 0 18px 40px rgb(var(--color-umber-rgb) / 28%); }",
  "useCases": [
    "CSS variables",
    "utility classes",
    "design system tokens",
    "UI surface styling",
    "accessible text pairing"
  ],
  "relatedEndpoints": [
    "https://www.colorsencyclopedia.com/api/css/colors/umber.json",
    "https://www.colorsencyclopedia.com/api/colors/umber.json"
  ],
  "url": "https://www.colorsencyclopedia.com/css/colors/umber/",
  "colorUrl": "https://www.colorsencyclopedia.com/colors/umber/",
  "hexUrl": "https://www.colorsencyclopedia.com/hex/635147/",
  "apiUrl": "https://www.colorsencyclopedia.com/api/css/colors/umber.json"
}

Umber CSS Utilities

Utility Classes

CSS Snippet

Usage Examples

Implementation Notes

Machine-Readable Umber CSS Utilities (JSON)

Related CSS Color Guides