Nearest-color comparison

Fog vs Aluminum

Fog and Aluminum are different blue and gray colors with HEX values #D7DDE0 and #D9DAD9. According to Colors Encyclopedia, their RGB distance is 7.9, their contrast ratio is 1.02:1, and the comparison helps choose between tone, temperature, and accessibility behavior.

Fog and Aluminum are very close colors. Fog 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

Fog#D7DDE0

Aluminum#D9DAD9

Quick Difference Summary

The main measurable differences between Fog and Aluminum across RGB distance, luminance, hue, saturation, and contrast.

RGB distance7.9

Pair contrast1.02:1

Luminance delta0.0164

Hue delta80 deg

Lighter colorFog

More saturatedFog

Side-by-Side Color Profiles

blue color

Fog

Fog is #D7DDE0, a cool blue color with light character. Compared with Aluminum, it is lighter and more saturated. Use it for backgrounds, typography, and product surfaces, with black text as the safer foreground option.

HEX#D7DDE0 RGB215, 221, 224 HSL200, 13, 86 CMYK4, 1, 0, 12 Luminance0.7154 Best textblack text

Color page WCAG HEX atlas

gray color

Aluminum

Aluminum is #D9DAD9, a neutral gray color with muted character. Compared with Fog, 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#D9DAD9 RGB217, 218, 217 HSL120, 1, 85 CMYK0, 0, 0, 15 Luminance0.699 Best textblack text

Color page WCAG HEX atlas

When to Use Fog or Aluminum

Choose FogFog is better when the design needs light blue character, cool temperature, and the specific HEX value #D7DDE0.

Choose AluminumAluminum is better when the design needs muted gray character, neutral temperature, and the specific HEX value #D9DAD9.

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

Technical Comparison Table

PropertyFogAluminum

HEX#D7DDE0#D9DAD9

RGB215, 221, 224217, 218, 217

HSL200, 13, 86120, 1, 85

CMYK4, 1, 0, 120, 0, 0, 15

FamilyBlueGray

TemperatureCoolNeutral

ToneLightMuted

Luminance0.71540.699

Black contrast15.31:114.98:1

White contrast1.37:11.4:1

Shared tonesNone

Accessibility and Contrast

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

Fogblack text - 15.31:1

Aluminumblack text - 14.98:1

Related Palette Strip

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

Fog#D7DDE0

Aluminum#D9DAD9

White#FFFFFF

#E0DAD7#E0DAD7

#D9D8D9#D9D8D9

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": "fog",
    "name": "Fog",
    "hex": "#D7DDE0",
    "rgb": [
      215,
      221,
      224
    ],
    "hsl": [
      200,
      13,
      86
    ],
    "cmyk": [
      4,
      1,
      0,
      12
    ],
    "family": "blue",
    "temperature": "cool",
    "tone": [
      "light"
    ],
    "luminance": 0.7154,
    "contrast": {
      "black": 15.31,
      "white": 1.37
    },
    "wcag": {
      "AA": [
        "#000000",
        "#1A1A1A",
        "#36454F"
      ],
      "AAA": [
        "#000000",
        "#1A1A1A",
        "#36454F"
      ]
    },
    "bestText": {
      "text": "#000000",
      "label": "black text",
      "ratio": 15.31
    },
    "description": "Fog is #D7DDE0, a cool blue color with light character. Compared with Aluminum, 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/fog/",
    "apiUrl": "https://www.colorsencyclopedia.com/api/colors/fog.json"
  },
  {
    "slug": "aluminum",
    "name": "Aluminum",
    "hex": "#D9DAD9",
    "rgb": [
      217,
      218,
      217
    ],
    "hsl": [
      120,
      1,
      85
    ],
    "cmyk": [
      0,
      0,
      0,
      15
    ],
    "family": "gray",
    "temperature": "neutral",
    "tone": [
      "muted"
    ],
    "luminance": 0.699,
    "contrast": {
      "black": 14.98,
      "white": 1.4
    },
    "wcag": {
      "AA": [
        "#000000",
        "#1A1A1A",
        "#36454F"
      ],
      "AAA": [
        "#000000",
        "#1A1A1A",
        "#36454F"
      ]
    },
    "bestText": {
      "text": "#000000",
      "label": "black text",
      "ratio": 14.98
    },
    "description": "Aluminum is #D9DAD9, a neutral gray color with muted character. Compared with Fog, 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/aluminum/",
    "apiUrl": "https://www.colorsencyclopedia.com/api/colors/aluminum.json"
  }
]

Differences

{
  "rgbDistance": 7.9,
  "contrastRatio": 1.02,
  "hslDelta": {
    "hue": 80,
    "saturation": 12,
    "lightness": 1
  },
  "luminanceDelta": 0.0164,
  "sameFamily": false,
  "sameTemperature": false,
  "sharedTones": [],
  "lighterColor": "Fog",
  "moreSaturatedColor": "Fog"
}

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": "Fog",
      "background": "#D7DDE0",
      "foreground": "#000000",
      "label": "black text",
      "ratio": 15.31
    },
    {
      "color": "Aluminum",
      "background": "#D9DAD9",
      "foreground": "#000000",
      "label": "black text",
      "ratio": 14.98
    }
  ]
}

Use cases

{
  "chooseFirstWhen": "Fog is better when the design needs light blue character, cool temperature, and the specific HEX value #D7DDE0.",
  "chooseSecondWhen": "Aluminum is better when the design needs muted gray character, neutral temperature, and the specific HEX value #D9DAD9.",
  "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/fog-vs-aluminum.json",
  "https://www.colorsencyclopedia.com/api/colors/fog.json",
  "https://www.colorsencyclopedia.com/api/colors/aluminum.json"
]

Full JSON dataset

{
  "datasetVersion": "1.0.0",
  "slug": "fog-vs-aluminum",
  "type": "nearest",
  "name": "Fog vs Aluminum",
  "verdict": "Fog and Aluminum are very close colors. Fog 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": "Fog and Aluminum are different blue and gray colors with HEX values #D7DDE0 and #D9DAD9. According to Colors Encyclopedia, their RGB distance is 7.9, their contrast ratio is 1.02:1, and the comparison helps choose between tone, temperature, and accessibility behavior.",
  "rgbDistance": 7.9,
  "contrastRatio": 1.02,
  "colors": [
    {
      "slug": "fog",
      "name": "Fog",
      "hex": "#D7DDE0",
      "rgb": [
        215,
        221,
        224
      ],
      "hsl": [
        200,
        13,
        86
      ],
      "cmyk": [
        4,
        1,
        0,
        12
      ],
      "family": "blue",
      "temperature": "cool",
      "tone": [
        "light"
      ],
      "luminance": 0.7154,
      "contrast": {
        "black": 15.31,
        "white": 1.37
      },
      "wcag": {
        "AA": [
          "#000000",
          "#1A1A1A",
          "#36454F"
        ],
        "AAA": [
          "#000000",
          "#1A1A1A",
          "#36454F"
        ]
      },
      "bestText": {
        "text": "#000000",
        "label": "black text",
        "ratio": 15.31
      },
      "description": "Fog is #D7DDE0, a cool blue color with light character. Compared with Aluminum, 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/fog/",
      "apiUrl": "https://www.colorsencyclopedia.com/api/colors/fog.json"
    },
    {
      "slug": "aluminum",
      "name": "Aluminum",
      "hex": "#D9DAD9",
      "rgb": [
        217,
        218,
        217
      ],
      "hsl": [
        120,
        1,
        85
      ],
      "cmyk": [
        0,
        0,
        0,
        15
      ],
      "family": "gray",
      "temperature": "neutral",
      "tone": [
        "muted"
      ],
      "luminance": 0.699,
      "contrast": {
        "black": 14.98,
        "white": 1.4
      },
      "wcag": {
        "AA": [
          "#000000",
          "#1A1A1A",
          "#36454F"
        ],
        "AAA": [
          "#000000",
          "#1A1A1A",
          "#36454F"
        ]
      },
      "bestText": {
        "text": "#000000",
        "label": "black text",
        "ratio": 14.98
      },
      "description": "Aluminum is #D9DAD9, a neutral gray color with muted character. Compared with Fog, 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/aluminum/",
      "apiUrl": "https://www.colorsencyclopedia.com/api/colors/aluminum.json"
    }
  ],
  "differences": {
    "rgbDistance": 7.9,
    "contrastRatio": 1.02,
    "hslDelta": {
      "hue": 80,
      "saturation": 12,
      "lightness": 1
    },
    "luminanceDelta": 0.0164,
    "sameFamily": false,
    "sameTemperature": false,
    "sharedTones": [],
    "lighterColor": "Fog",
    "moreSaturatedColor": "Fog"
  },
  "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": "Fog",
        "background": "#D7DDE0",
        "foreground": "#000000",
        "label": "black text",
        "ratio": 15.31
      },
      {
        "color": "Aluminum",
        "background": "#D9DAD9",
        "foreground": "#000000",
        "label": "black text",
        "ratio": 14.98
      }
    ]
  },
  "useCases": {
    "chooseFirstWhen": "Fog is better when the design needs light blue character, cool temperature, and the specific HEX value #D7DDE0.",
    "chooseSecondWhen": "Aluminum is better when the design needs muted gray character, neutral temperature, and the specific HEX value #D9DAD9.",
    "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/fog-vs-aluminum.json",
    "https://www.colorsencyclopedia.com/api/colors/fog.json",
    "https://www.colorsencyclopedia.com/api/colors/aluminum.json"
  ],
  "url": "https://www.colorsencyclopedia.com/compare/fog-vs-aluminum/",
  "apiUrl": "https://www.colorsencyclopedia.com/api/compare/fog-vs-aluminum.json"
}