Colors Encyclopedia

Named color

River Stone

River Stone is a muted gray color with HEX #7E8A8A. According to Colors Encyclopedia, it has RGB 126, 138, 138, HSL 180, 5%, 52%, neutral temperature, and is useful for earth tone palettes, interior design, and material inspired branding.

#7E8A8A gray neutral muted
HEX #7E8A8A
RGB rgb(126, 138, 138)
HSL hsl(180 5% 52%)
CMYK cmyk(9, 0, 0, 46)
Luminance 0.2445
Contrast Black 5.89:1White 3.57:1

CSS Utilities

--color-river-stone: #7E8A8A;
.bg-river-stone { background-color: #7E8A8A; }
.text-river-stone { color: #7E8A8A; }
Open CSS utility pageReusable variables, classes, examples, and implementation notes

Machine-readable data

Machine-Readable Color Data (JSON)

Perfect for CSS, design systems, automation, and AI ingestion.

AI-Ready Dataset v1.0.0
Luminance0.2445
Black text5.89:1AA Pass
White text3.57:1AA Fail
hexCanonical HEX value
rgbRed, green, blue channels
hslHue, saturation, lightness
cmykApproximate print conversion
wcagAA and AAA contrast options
harmoniesMathematical harmony sets
variantsGenerated tone variants
nearestColorsKnowledge graph neighbors
Download JSON Open API
Structured sections
Color systems
{
  "hex": "#7E8A8A",
  "rgb": [
    126,
    138,
    138
  ],
  "hsl": [
    180,
    5,
    52
  ],
  "cmyk": [
    9,
    0,
    0,
    46
  ],
  "luminance": 0.2445,
  "contrast": {
    "black": 5.89,
    "white": 3.57
  }
}
WCAG
{
  "AA": [
    "#000000",
    "#1A1A1A"
  ],
  "AAA": []
}
Harmonies
{
  "complementary": "#8B7E7E",
  "analogous": [
    "#7E8B85",
    "#7E858B"
  ],
  "triadic": [
    "#8B7E8B",
    "#8B8B7E"
  ],
  "tetradic": [
    "#857E8B",
    "#8B7E7E",
    "#858B7E"
  ],
  "splitComplementary": [
    "#8B7E85",
    "#8B857E"
  ],
  "monochromatic": [
    "#AFB6B6",
    "#7E8A8A",
    "#525B5B"
  ]
}
Variants
{
  "light": "#AFB6B6",
  "dark": "#525B5B",
  "saturated": "#64A6A6",
  "desaturated": "#858585",
  "pastel": "#C4C4C4",
  "neon": "#33FFFF"
}
Pairings
{
  "best": [
    "#000000",
    "#8B7E7E",
    "#7E8B85",
    "#7E858B"
  ],
  "avoid": [
    "#858585",
    "#AFB6B6"
  ],
  "neutral": [
    "#1A1A1A",
    "#F5F5F5",
    "#E8E8E4"
  ],
  "highContrast": [
    "#000000"
  ],
  "lowContrast": [
    "#AFB6B6",
    "#858585"
  ]
}
Knowledge graph
{
  "nearestColors": [
    "primer-gray",
    "titanium",
    "gray",
    "grey",
    "light-slate-gray"
  ],
  "generatedPalettes": [
    "river-stone"
  ],
  "generatedComparisons": [
    "primer-gray-vs-river-stone",
    "river-stone-vs-titanium"
  ],
  "relatedFamilies": [
    "/colors/by-family/gray",
    "/colors/by-temperature/neutral",
    "/colors/by-tone/muted"
  ],
  "relatedTools": [
    "/harmonies/river-stone",
    "/wcag/river-stone",
    "/css/colors/river-stone",
    "/hex/7e8a8a"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/gray",
      "/colors/by-temperature/neutral",
      "/colors/by-tone/muted"
    ],
    "narrower": [
      "/palettes/river-stone"
    ],
    "related": [
      "/colors/primer-gray",
      "/colors/titanium",
      "/colors/gray",
      "/colors/grey",
      "/colors/light-slate-gray",
      "/compare/primer-gray-vs-river-stone",
      "/compare/river-stone-vs-titanium",
      "/harmonies/river-stone",
      "/wcag/river-stone",
      "/css/colors/river-stone",
      "/hex/7e8a8a"
    ]
  }
}
Full JSON dataset 
{
  "slug": "river-stone",
  "name": "River Stone",
  "hex": "#7E8A8A",
  "uses": [
    "earth-tone palettes",
    "interior design",
    "material-inspired branding"
  ],
  "psychology": {
    "associations": [
      "groundedness",
      "warmth",
      "natural texture"
    ],
    "contexts": [
      "architecture",
      "home decor",
      "outdoor products",
      "editorial layouts"
    ],
    "avoidIn": [
      "high-saturation futuristic interfaces"
    ]
  },
  "aliases": [],
  "sourceType": "curated",
  "confidence": "medium",
  "reviewStatus": "manual",
  "sourceUrl": "https://www.colorsencyclopedia.com/assets/colors.json",
  "origin": {
    "type": "common",
    "notes": "Curated common color reference used in design, material, cultural, and editorial color systems."
  },
  "family": "gray",
  "temperature": "neutral",
  "tone": [
    "muted"
  ],
  "editorialNotes": "Curated internal color record with computed technical properties.",
  "tags": [
    "gray",
    "neutral",
    "muted",
    "earth-tone-palettes",
    "interior-design",
    "material-inspired-branding",
    "groundedness",
    "warmth",
    "natural-texture"
  ],
  "popularity": 84,
  "rgb": [
    126,
    138,
    138
  ],
  "hsl": [
    180,
    5,
    52
  ],
  "cmyk": [
    9,
    0,
    0,
    46
  ],
  "luminance": 0.2445,
  "contrast": {
    "black": 5.89,
    "white": 3.57
  },
  "harmonies": {
    "complementary": "#8B7E7E",
    "analogous": [
      "#7E8B85",
      "#7E858B"
    ],
    "triadic": [
      "#8B7E8B",
      "#8B8B7E"
    ],
    "tetradic": [
      "#857E8B",
      "#8B7E7E",
      "#858B7E"
    ],
    "splitComplementary": [
      "#8B7E85",
      "#8B857E"
    ],
    "monochromatic": [
      "#AFB6B6",
      "#7E8A8A",
      "#525B5B"
    ]
  },
  "variants": {
    "light": "#AFB6B6",
    "dark": "#525B5B",
    "saturated": "#64A6A6",
    "desaturated": "#858585",
    "pastel": "#C4C4C4",
    "neon": "#33FFFF"
  },
  "wcag": {
    "AA": [
      "#000000",
      "#1A1A1A"
    ],
    "AAA": []
  },
  "css": {
    "variable": "--color-river-stone: #7E8A8A;",
    "utility": ".bg-river-stone { background-color: #7E8A8A; }",
    "textUtility": ".text-river-stone { color: #7E8A8A; }"
  },
  "nearestColors": [
    "primer-gray",
    "titanium",
    "gray",
    "grey",
    "light-slate-gray"
  ],
  "generatedPalettes": [
    "river-stone"
  ],
  "generatedComparisons": [
    "primer-gray-vs-river-stone",
    "river-stone-vs-titanium"
  ],
  "relatedFamilies": [
    "/colors/by-family/gray",
    "/colors/by-temperature/neutral",
    "/colors/by-tone/muted"
  ],
  "relatedTools": [
    "/harmonies/river-stone",
    "/wcag/river-stone",
    "/css/colors/river-stone",
    "/hex/7e8a8a"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/gray",
      "/colors/by-temperature/neutral",
      "/colors/by-tone/muted"
    ],
    "narrower": [
      "/palettes/river-stone"
    ],
    "related": [
      "/colors/primer-gray",
      "/colors/titanium",
      "/colors/gray",
      "/colors/grey",
      "/colors/light-slate-gray",
      "/compare/primer-gray-vs-river-stone",
      "/compare/river-stone-vs-titanium",
      "/harmonies/river-stone",
      "/wcag/river-stone",
      "/css/colors/river-stone",
      "/hex/7e8a8a"
    ]
  },
  "pairings": {
    "best": [
      "#000000",
      "#8B7E7E",
      "#7E8B85",
      "#7E858B"
    ],
    "avoid": [
      "#858585",
      "#AFB6B6"
    ],
    "neutral": [
      "#1A1A1A",
      "#F5F5F5",
      "#E8E8E4"
    ],
    "highContrast": [
      "#000000"
    ],
    "lowContrast": [
      "#AFB6B6",
      "#858585"
    ]
  }
}
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

Color meaning and use

About River Stone Color

River Stone sits in the gray family with neutral temperature and muted visual character. River Stone is a commonly used color name in design references, palettes, and editorial color systems.

Its common associations include groundedness, warmth, and natural texture, which makes it relevant for architecture and home decor. In design work, River Stone is most useful for earth-tone palettes, interior design, and material-inspired branding, especially when paired with black text for stronger contrast.

Related Color Guides

Gray color familyBrowse named gray colors and compare nearby swatches.Neutral colorsExplore colors with neutral temperature behavior.Muted colorsFind colors with muted visual character.River Stone accessibilityCheck contrast and WCAG text options for #7E8A8A.River Stone CSS utilitiesUse River Stone in CSS variables and utility classes.#7E8A8A HEX atlasOpen the permanent HEX atlas record for conversions and variants.River Stone paletteOpen the generated palette based on River Stone.River Stone harmoniesExplore complementary, analogous, triadic, and tetradic harmonies.

WCAG Accessibility

Contrast checks for River Stone against black and white text.

Black text5.89:1AA Pass
White text3.57:1AA Fail
AA text options#000000, #1A1A1A
AAA text optionsNone in seed set
Open WCAG pageDetailed contrast notes, warnings, alternatives, and UI examples

Similar Colors

Primer Gray#8B8C89
Titanium#878681
Gray#808080
Grey#808080
Light Slate Gray#778899

Color Harmonies

#8B7E7E#8B7E7E
#7E8B85#7E8B85
#7E858B#7E858B
#8B7E8B#8B7E8B
#8B8B7E#8B8B7E
Open full River Stone harmony pageComplementary, analogous, triadic, tetradic, split, and monochromatic sets

Variants

#AFB6B6#AFB6B6
#525B5B#525B5B
#64A6A6#64A6A6
#858585#858585
#C4C4C4#C4C4C4
#33FFFF#33FFFF

Pairings

Black#000000
#8B7E7E#8B7E7E
#7E8B85#7E8B85
#7E858B#7E858B
Matte Black#1A1A1A
White Smoke#F5F5F5