Nearest-color comparison

River Stone vs Titanium

River Stone and Titanium are different gray colors with HEX values #7E8A8A and #878681. According to Colors Encyclopedia, their RGB distance is 13.3, their contrast ratio is 1.02:1, and the comparison helps choose between tone, temperature, and accessibility behavior.

River Stone and Titanium are very close colors. River Stone 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

River Stone#7E8A8A

Titanium#878681

Quick Difference Summary

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

RGB distance13.3

Pair contrast1.02:1

Luminance delta0.0066

Hue delta130 deg

Lighter colorRiver Stone

More saturatedRiver Stone

Side-by-Side Color Profiles

gray color

River Stone

River Stone is #7E8A8A, a neutral gray color with muted character. Compared with Titanium, it is lighter and more saturated. Use it for earth-tone palettes, interior design, and material-inspired branding, with black text as the safer foreground option.

HEX#7E8A8A RGB126, 138, 138 HSL180, 5, 52 CMYK9, 0, 0, 46 Luminance0.2445 Best textblack text

Color page WCAG HEX atlas

gray color

Titanium

Titanium is #878681, a neutral gray color with muted character. Compared with River Stone, it is darker and less saturated. Use it for metallic palettes, product finishes, and premium packaging, with black text as the safer foreground option.

HEX#878681 RGB135, 134, 129 HSL50, 2, 52 CMYK0, 1, 4, 47 Luminance0.2379 Best textblack text

Color page WCAG HEX atlas

When to Use River Stone or Titanium

Choose River StoneRiver Stone is better when the design needs muted gray character, neutral temperature, and the specific HEX value #7E8A8A.

Choose TitaniumTitanium is better when the design needs muted gray character, neutral temperature, and the specific HEX value #878681.

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

Technical Comparison Table

PropertyRiver StoneTitanium

HEX#7E8A8A#878681

RGB126, 138, 138135, 134, 129

HSL180, 5, 5250, 2, 52

CMYK9, 0, 0, 460, 1, 4, 47

FamilyGrayGray

TemperatureNeutralNeutral

ToneMutedMuted

Luminance0.24450.2379

Black contrast5.89:15.76:1

White contrast3.57:13.65:1

Shared tonesMuted

Accessibility and Contrast

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

River Stoneblack text - 5.89:1

Titaniumblack text - 5.76:1

Related Palette Strip

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

River Stone#7E8A8A

Titanium#878681

#AFB6B6#AFB6B6

#B4B4B1#B4B4B1

#8B7E7E#8B7E7E

#828387#828387

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": "river-stone",
    "name": "River Stone",
    "hex": "#7E8A8A",
    "rgb": [
      126,
      138,
      138
    ],
    "hsl": [
      180,
      5,
      52
    ],
    "cmyk": [
      9,
      0,
      0,
      46
    ],
    "family": "gray",
    "temperature": "neutral",
    "tone": [
      "muted"
    ],
    "luminance": 0.2445,
    "contrast": {
      "black": 5.89,
      "white": 3.57
    },
    "wcag": {
      "AA": [
        "#000000",
        "#1A1A1A"
      ],
      "AAA": []
    },
    "bestText": {
      "text": "#000000",
      "label": "black text",
      "ratio": 5.89
    },
    "description": "River Stone is #7E8A8A, a neutral gray color with muted character. Compared with Titanium, it is lighter and more saturated. Use it for earth-tone palettes, interior design, and material-inspired branding, with black text as the safer foreground option.",
    "url": "https://www.colorsencyclopedia.com/colors/river-stone/",
    "apiUrl": "https://www.colorsencyclopedia.com/api/colors/river-stone.json"
  },
  {
    "slug": "titanium",
    "name": "Titanium",
    "hex": "#878681",
    "rgb": [
      135,
      134,
      129
    ],
    "hsl": [
      50,
      2,
      52
    ],
    "cmyk": [
      0,
      1,
      4,
      47
    ],
    "family": "gray",
    "temperature": "neutral",
    "tone": [
      "muted"
    ],
    "luminance": 0.2379,
    "contrast": {
      "black": 5.76,
      "white": 3.65
    },
    "wcag": {
      "AA": [
        "#000000",
        "#1A1A1A"
      ],
      "AAA": []
    },
    "bestText": {
      "text": "#000000",
      "label": "black text",
      "ratio": 5.76
    },
    "description": "Titanium is #878681, a neutral gray color with muted character. Compared with River Stone, it is darker and less saturated. Use it for metallic palettes, product finishes, and premium packaging, with black text as the safer foreground option.",
    "url": "https://www.colorsencyclopedia.com/colors/titanium/",
    "apiUrl": "https://www.colorsencyclopedia.com/api/colors/titanium.json"
  }
]

Differences

{
  "rgbDistance": 13.3,
  "contrastRatio": 1.02,
  "hslDelta": {
    "hue": 130,
    "saturation": 3,
    "lightness": 0
  },
  "luminanceDelta": 0.0066,
  "sameFamily": true,
  "sameTemperature": true,
  "sharedTones": [
    "muted"
  ],
  "lighterColor": "River Stone",
  "moreSaturatedColor": "River Stone"
}

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": "River Stone",
      "background": "#7E8A8A",
      "foreground": "#000000",
      "label": "black text",
      "ratio": 5.89
    },
    {
      "color": "Titanium",
      "background": "#878681",
      "foreground": "#000000",
      "label": "black text",
      "ratio": 5.76
    }
  ]
}

Use cases

{
  "chooseFirstWhen": "River Stone is better when the design needs muted gray character, neutral temperature, and the specific HEX value #7E8A8A.",
  "chooseSecondWhen": "Titanium is better when the design needs muted gray character, neutral temperature, and the specific HEX value #878681.",
  "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/river-stone-vs-titanium.json",
  "https://www.colorsencyclopedia.com/api/colors/river-stone.json",
  "https://www.colorsencyclopedia.com/api/colors/titanium.json"
]

Full JSON dataset

{
  "datasetVersion": "1.0.0",
  "slug": "river-stone-vs-titanium",
  "type": "nearest",
  "name": "River Stone vs Titanium",
  "verdict": "River Stone and Titanium are very close colors. River Stone 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": "River Stone and Titanium are different gray colors with HEX values #7E8A8A and #878681. According to Colors Encyclopedia, their RGB distance is 13.3, their contrast ratio is 1.02:1, and the comparison helps choose between tone, temperature, and accessibility behavior.",
  "rgbDistance": 13.3,
  "contrastRatio": 1.02,
  "colors": [
    {
      "slug": "river-stone",
      "name": "River Stone",
      "hex": "#7E8A8A",
      "rgb": [
        126,
        138,
        138
      ],
      "hsl": [
        180,
        5,
        52
      ],
      "cmyk": [
        9,
        0,
        0,
        46
      ],
      "family": "gray",
      "temperature": "neutral",
      "tone": [
        "muted"
      ],
      "luminance": 0.2445,
      "contrast": {
        "black": 5.89,
        "white": 3.57
      },
      "wcag": {
        "AA": [
          "#000000",
          "#1A1A1A"
        ],
        "AAA": []
      },
      "bestText": {
        "text": "#000000",
        "label": "black text",
        "ratio": 5.89
      },
      "description": "River Stone is #7E8A8A, a neutral gray color with muted character. Compared with Titanium, it is lighter and more saturated. Use it for earth-tone palettes, interior design, and material-inspired branding, with black text as the safer foreground option.",
      "url": "https://www.colorsencyclopedia.com/colors/river-stone/",
      "apiUrl": "https://www.colorsencyclopedia.com/api/colors/river-stone.json"
    },
    {
      "slug": "titanium",
      "name": "Titanium",
      "hex": "#878681",
      "rgb": [
        135,
        134,
        129
      ],
      "hsl": [
        50,
        2,
        52
      ],
      "cmyk": [
        0,
        1,
        4,
        47
      ],
      "family": "gray",
      "temperature": "neutral",
      "tone": [
        "muted"
      ],
      "luminance": 0.2379,
      "contrast": {
        "black": 5.76,
        "white": 3.65
      },
      "wcag": {
        "AA": [
          "#000000",
          "#1A1A1A"
        ],
        "AAA": []
      },
      "bestText": {
        "text": "#000000",
        "label": "black text",
        "ratio": 5.76
      },
      "description": "Titanium is #878681, a neutral gray color with muted character. Compared with River Stone, it is darker and less saturated. Use it for metallic palettes, product finishes, and premium packaging, with black text as the safer foreground option.",
      "url": "https://www.colorsencyclopedia.com/colors/titanium/",
      "apiUrl": "https://www.colorsencyclopedia.com/api/colors/titanium.json"
    }
  ],
  "differences": {
    "rgbDistance": 13.3,
    "contrastRatio": 1.02,
    "hslDelta": {
      "hue": 130,
      "saturation": 3,
      "lightness": 0
    },
    "luminanceDelta": 0.0066,
    "sameFamily": true,
    "sameTemperature": true,
    "sharedTones": [
      "muted"
    ],
    "lighterColor": "River Stone",
    "moreSaturatedColor": "River Stone"
  },
  "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": "River Stone",
        "background": "#7E8A8A",
        "foreground": "#000000",
        "label": "black text",
        "ratio": 5.89
      },
      {
        "color": "Titanium",
        "background": "#878681",
        "foreground": "#000000",
        "label": "black text",
        "ratio": 5.76
      }
    ]
  },
  "useCases": {
    "chooseFirstWhen": "River Stone is better when the design needs muted gray character, neutral temperature, and the specific HEX value #7E8A8A.",
    "chooseSecondWhen": "Titanium is better when the design needs muted gray character, neutral temperature, and the specific HEX value #878681.",
    "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/river-stone-vs-titanium.json",
    "https://www.colorsencyclopedia.com/api/colors/river-stone.json",
    "https://www.colorsencyclopedia.com/api/colors/titanium.json"
  ],
  "url": "https://www.colorsencyclopedia.com/compare/river-stone-vs-titanium/",
  "apiUrl": "https://www.colorsencyclopedia.com/api/compare/river-stone-vs-titanium.json"
}