Colors Encyclopedia

Named color

River Stone

River Stone color #7E8A8A: RGB 126, 138, 138 and HSL 180°, 5%, 52%. Explore its neutral gray profile, contrast, CSS, palettes and harmonies.

#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

Use this color

Create with River Stone

Open a professional color tool with #7E8A8A already applied. Each configuration stays canonical to the tool and can be adjusted or shared.

All color tools
Generate palette & CSS variablesCreate 50–950 tokens and export CSS, SCSS, JSON, or Tailwind.Open configured tool →Open in Gradient StudioStart with River Stone and its complementary color.Open configured tool →Mix this colorBlend it with a complementary color and copy color-mix() CSS.Open configured tool →Check contrastOpen the strongest black or white background pairing.Open configured tool →Accessible combinationsReview AA and AAA text options, alternatives, warnings, and UI guidance.Open configured tool →Create glass surfaceUse this color as the tint for a translucent UI panel.Open configured tool →

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

Color meaning and use

About River Stone Color

River Stone uses HEX #7E8A8A, RGB 126, 138, 138, and HSL 180°, 5%, 52%. The dataset classifies it in the gray family with neutral temperature and muted visual character.

No separate named-color neighbor is recorded for this entry. Its relative luminance is 0.2445; black contrast is 5.89:1 and white contrast is 3.57:1, making black the stronger of those two standard foreground choices.

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

Downloadable color reference infographic

River Stone Color Reference Infographic

Save a high-resolution infographic of River Stone, including its color values, coordinated palette, and black and white text contrast.

1200 × 800
River Stone color reference infographic showing #7E8A8A, RGB and HSL values, a coordinated palette, and black and white text contrast.
River Stone color reference infographic generated from the verified Colors Encyclopedia dataset.
Download WebPDownload SVGOpen full size

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#7E858BMatte Black#1A1A1AWhite Smoke#F5F5F5

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",
    "/tools/css-gradient-generator",
    "/tools/color-palette-generator",
    "/tools/css-color-mixer",
    "/tools/contrast-checker"
  ],
  "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",
      "/tools/css-gradient-generator",
      "/tools/color-palette-generator",
      "/tools/css-color-mixer",
      "/tools/contrast-checker"
    ]
  }
}
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",
    "/tools/css-gradient-generator",
    "/tools/color-palette-generator",
    "/tools/css-color-mixer",
    "/tools/contrast-checker"
  ],
  "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",
      "/tools/css-gradient-generator",
      "/tools/color-palette-generator",
      "/tools/css-color-mixer",
      "/tools/contrast-checker"
    ]
  },
  "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

Similar Colors

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

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.