Nearest-color comparison

Stone vs Warm Gray

Stone and Warm Gray are different gray colors with HEX values #8A817C and #8A8378. According to Colors Encyclopedia, their RGB distance is 4.5, their contrast ratio is 1.02:1, and the comparison helps choose between tone, temperature, and accessibility behavior.

Stone and Warm Gray are very close colors. Warm Gray is the lighter option. They share similar temperature behavior. Their mutual contrast is 1.02:1, so the pair is too low for text and better treated as a palette relationship.

Differences Use cases Accessibility JSON

Stone#8A817C

Warm Gray#8A8378

Quick Difference Summary

The main measurable differences between Stone and Warm Gray across RGB distance, luminance, hue, saturation, and contrast.

RGB distance4.5

Pair contrast1.02:1

Luminance delta0.0043

Hue delta16 deg

Lighter colorWarm Gray

More saturatedWarm Gray

Side-by-Side Color Profiles

gray color

Stone

Stone is #8A817C, a neutral gray color with muted character. Compared with Warm Gray, it is darker and less saturated. Use it for backgrounds, typography, and product surfaces, with black text as the safer foreground option.

HEX#8A817C RGB138, 129, 124 HSL21, 6, 51 CMYK0, 7, 10, 46 Luminance0.2256 Best textblack text

Color page WCAG HEX atlas

gray color

Warm Gray

Warm Gray is #8A8378, a neutral gray color with muted character. Compared with Stone, it is lighter and more saturated. Use it for backgrounds, typography, and product surfaces, with black text as the safer foreground option.

HEX#8A8378 RGB138, 131, 120 HSL37, 7, 51 CMYK0, 5, 13, 46 Luminance0.2299 Best textblack text

Color page WCAG HEX atlas

When to Use Stone or Warm Gray

Choose StoneStone is better when the design needs muted gray character, neutral temperature, and the specific HEX value #8A817C.

Choose Warm GrayWarm Gray is better when the design needs muted gray character, neutral temperature, and the specific HEX value #8A8378.

Use togetherUse these colors together as related palette neighbors, subtle material differences, or tonal alternatives rather than readable foreground/background pairs.

Technical Comparison Table

PropertyStoneWarm Gray

HEX#8A817C#8A8378

RGB138, 129, 124138, 131, 120

HSL21, 6, 5137, 7, 51

CMYK0, 7, 10, 460, 5, 13, 46

FamilyGrayGray

TemperatureNeutralNeutral

ToneMutedMuted

Luminance0.22560.2299

Black contrast5.51:15.6:1

White contrast3.81:13.75:1

Shared tonesMuted

Accessibility and Contrast

Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.

Stoneblack text - 5.51:1

Warm Grayblack text - 5.6:1

Related Palette Strip

A compact visual strip showing the two compared colors with nearby harmony and variant context.

Stone#8A817C

Warm Gray#8A8378

#B5AFAB#B5AFAB

#B5B1AA#B5B1AA

#7B848A#7B848A

#79808B#79808B

colorsBoth named color records with HEX, RGB, HSL, CMYK, luminance, WCAG, and links

differencesRGB distance, HSL deltas, luminance delta, contrast, and shared attributes

accessibilityPair contrast and safer text choices for each color

useCasesWhen to choose each color and when to use them together

relatedApiMachine-readable comparison and color endpoints

Structured sections

Colors

[
  {
    "slug": "stone",
    "name": "Stone",
    "hex": "#8A817C",
    "rgb": [
      138,
      129,
      124
    ],
    "hsl": [
      21,
      6,
      51
    ],
    "cmyk": [
      0,
      7,
      10,
      46
    ],
    "family": "gray",
    "temperature": "neutral",
    "tone": [
      "muted"
    ],
    "luminance": 0.2256,
    "contrast": {
      "black": 5.51,
      "white": 3.81
    },
    "wcag": {
      "AA": [
        "#000000",
        "#1A1A1A"
      ],
      "AAA": []
    },
    "bestText": {
      "text": "#000000",
      "label": "black text",
      "ratio": 5.51
    },
    "description": "Stone is #8A817C, a neutral gray color with muted character. Compared with Warm Gray, it is darker and less saturated. Use it for backgrounds, typography, and product surfaces, with black text as the safer foreground option.",
    "url": "https://www.colorsencyclopedia.com/colors/stone/",
    "apiUrl": "https://www.colorsencyclopedia.com/api/colors/stone.json"
  },
  {
    "slug": "warm-gray",
    "name": "Warm Gray",
    "hex": "#8A8378",
    "rgb": [
      138,
      131,
      120
    ],
    "hsl": [
      37,
      7,
      51
    ],
    "cmyk": [
      0,
      5,
      13,
      46
    ],
    "family": "gray",
    "temperature": "neutral",
    "tone": [
      "muted"
    ],
    "luminance": 0.2299,
    "contrast": {
      "black": 5.6,
      "white": 3.75
    },
    "wcag": {
      "AA": [
        "#000000",
        "#1A1A1A"
      ],
      "AAA": []
    },
    "bestText": {
      "text": "#000000",
      "label": "black text",
      "ratio": 5.6
    },
    "description": "Warm Gray is #8A8378, a neutral gray color with muted character. Compared with Stone, it is lighter and more saturated. Use it for backgrounds, typography, and product surfaces, with black text as the safer foreground option.",
    "url": "https://www.colorsencyclopedia.com/colors/warm-gray/",
    "apiUrl": "https://www.colorsencyclopedia.com/api/colors/warm-gray.json"
  }
]

Differences

{
  "rgbDistance": 4.5,
  "contrastRatio": 1.02,
  "hslDelta": {
    "hue": 16,
    "saturation": 1,
    "lightness": 0
  },
  "luminanceDelta": 0.0043,
  "sameFamily": true,
  "sameTemperature": true,
  "sharedTones": [
    "muted"
  ],
  "lighterColor": "Warm Gray",
  "moreSaturatedColor": "Warm Gray"
}

Accessibility

{
  "pairContrastRatio": 1.02,
  "textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
  "safeText": [
    {
      "color": "Stone",
      "background": "#8A817C",
      "foreground": "#000000",
      "label": "black text",
      "ratio": 5.51
    },
    {
      "color": "Warm Gray",
      "background": "#8A8378",
      "foreground": "#000000",
      "label": "black text",
      "ratio": 5.6
    }
  ]
}

Use cases

{
  "chooseFirstWhen": "Stone is better when the design needs muted gray character, neutral temperature, and the specific HEX value #8A817C.",
  "chooseSecondWhen": "Warm Gray is better when the design needs muted gray character, neutral temperature, and the specific HEX value #8A8378.",
  "useTogetherWhen": "Use these colors together as related palette neighbors, subtle material differences, or tonal alternatives rather than readable foreground/background pairs."
}

Related API

[
  "https://www.colorsencyclopedia.com/api/compare/stone-vs-warm-gray.json",
  "https://www.colorsencyclopedia.com/api/colors/stone.json",
  "https://www.colorsencyclopedia.com/api/colors/warm-gray.json"
]

Full JSON dataset

{
  "datasetVersion": "1.0.0",
  "slug": "stone-vs-warm-gray",
  "type": "nearest",
  "name": "Stone vs Warm Gray",
  "verdict": "Stone and Warm Gray are very close colors. Warm Gray is the lighter option. They share similar temperature behavior. Their mutual contrast is 1.02:1, so the pair is too low for text and better treated as a palette relationship.",
  "summary": "Stone and Warm Gray are different gray colors with HEX values #8A817C and #8A8378. According to Colors Encyclopedia, their RGB distance is 4.5, their contrast ratio is 1.02:1, and the comparison helps choose between tone, temperature, and accessibility behavior.",
  "rgbDistance": 4.5,
  "contrastRatio": 1.02,
  "colors": [
    {
      "slug": "stone",
      "name": "Stone",
      "hex": "#8A817C",
      "rgb": [
        138,
        129,
        124
      ],
      "hsl": [
        21,
        6,
        51
      ],
      "cmyk": [
        0,
        7,
        10,
        46
      ],
      "family": "gray",
      "temperature": "neutral",
      "tone": [
        "muted"
      ],
      "luminance": 0.2256,
      "contrast": {
        "black": 5.51,
        "white": 3.81
      },
      "wcag": {
        "AA": [
          "#000000",
          "#1A1A1A"
        ],
        "AAA": []
      },
      "bestText": {
        "text": "#000000",
        "label": "black text",
        "ratio": 5.51
      },
      "description": "Stone is #8A817C, a neutral gray color with muted character. Compared with Warm Gray, it is darker and less saturated. Use it for backgrounds, typography, and product surfaces, with black text as the safer foreground option.",
      "url": "https://www.colorsencyclopedia.com/colors/stone/",
      "apiUrl": "https://www.colorsencyclopedia.com/api/colors/stone.json"
    },
    {
      "slug": "warm-gray",
      "name": "Warm Gray",
      "hex": "#8A8378",
      "rgb": [
        138,
        131,
        120
      ],
      "hsl": [
        37,
        7,
        51
      ],
      "cmyk": [
        0,
        5,
        13,
        46
      ],
      "family": "gray",
      "temperature": "neutral",
      "tone": [
        "muted"
      ],
      "luminance": 0.2299,
      "contrast": {
        "black": 5.6,
        "white": 3.75
      },
      "wcag": {
        "AA": [
          "#000000",
          "#1A1A1A"
        ],
        "AAA": []
      },
      "bestText": {
        "text": "#000000",
        "label": "black text",
        "ratio": 5.6
      },
      "description": "Warm Gray is #8A8378, a neutral gray color with muted character. Compared with Stone, it is lighter and more saturated. Use it for backgrounds, typography, and product surfaces, with black text as the safer foreground option.",
      "url": "https://www.colorsencyclopedia.com/colors/warm-gray/",
      "apiUrl": "https://www.colorsencyclopedia.com/api/colors/warm-gray.json"
    }
  ],
  "differences": {
    "rgbDistance": 4.5,
    "contrastRatio": 1.02,
    "hslDelta": {
      "hue": 16,
      "saturation": 1,
      "lightness": 0
    },
    "luminanceDelta": 0.0043,
    "sameFamily": true,
    "sameTemperature": true,
    "sharedTones": [
      "muted"
    ],
    "lighterColor": "Warm Gray",
    "moreSaturatedColor": "Warm Gray"
  },
  "accessibility": {
    "pairContrastRatio": 1.02,
    "textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
    "safeText": [
      {
        "color": "Stone",
        "background": "#8A817C",
        "foreground": "#000000",
        "label": "black text",
        "ratio": 5.51
      },
      {
        "color": "Warm Gray",
        "background": "#8A8378",
        "foreground": "#000000",
        "label": "black text",
        "ratio": 5.6
      }
    ]
  },
  "useCases": {
    "chooseFirstWhen": "Stone is better when the design needs muted gray character, neutral temperature, and the specific HEX value #8A817C.",
    "chooseSecondWhen": "Warm Gray is better when the design needs muted gray character, neutral temperature, and the specific HEX value #8A8378.",
    "useTogetherWhen": "Use these colors together as related palette neighbors, subtle material differences, or tonal alternatives rather than readable foreground/background pairs."
  },
  "relatedApi": [
    "https://www.colorsencyclopedia.com/api/compare/stone-vs-warm-gray.json",
    "https://www.colorsencyclopedia.com/api/colors/stone.json",
    "https://www.colorsencyclopedia.com/api/colors/warm-gray.json"
  ],
  "url": "https://www.colorsencyclopedia.com/compare/stone-vs-warm-gray/",
  "apiUrl": "https://www.colorsencyclopedia.com/api/compare/stone-vs-warm-gray.json"
}