Nearest-color comparison

Dark Slate Gray vs Dark Slate Grey

Dark Slate Gray and Dark Slate Grey are different cyan colors with HEX values #2F4F4F and #2F4F4F. According to Colors Encyclopedia, their RGB distance is 0, their contrast ratio is 1:1, and the comparison helps choose between tone, temperature, and accessibility behavior.

Dark Slate Gray and Dark Slate Grey are very close colors. They have nearly identical luminance. They share similar temperature behavior. Their mutual contrast is 1:1, so the pair is too low for text and better treated as a palette relationship.

Differences Use cases Accessibility JSON

Dark Slate Gray#2F4F4F

Dark Slate Grey#2F4F4F

Quick Difference Summary

The main measurable differences between Dark Slate Gray and Dark Slate Grey across RGB distance, luminance, hue, saturation, and contrast.

RGB distance0

Pair contrast1:1

Luminance delta0

Hue delta0 deg

Lighter colorDark Slate Gray

More saturatedDark Slate Gray

Side-by-Side Color Profiles

cyan color

Dark Slate Gray

Dark Slate Gray is #2F4F4F, a cool cyan color with muted character. Compared with Dark Slate Grey, it is similar in luminance and similar in saturation. Use it for web design, css color systems, and ui prototyping, with white text as the safer foreground option.

HEX#2F4F4F RGB47, 79, 79 HSL180, 25, 25 CMYK41, 0, 0, 69 Luminance0.0676 Best textwhite text

Color page WCAG HEX atlas

cyan color

Dark Slate Grey

Dark Slate Grey is #2F4F4F, a cool cyan color with muted character. Compared with Dark Slate Gray, it is similar in luminance and similar in saturation. Use it for web design, css color systems, and ui prototyping, with white text as the safer foreground option.

HEX#2F4F4F RGB47, 79, 79 HSL180, 25, 25 CMYK41, 0, 0, 69 Luminance0.0676 Best textwhite text

Color page WCAG HEX atlas

When to Use Dark Slate Gray or Dark Slate Grey

Choose Dark Slate GrayDark Slate Gray is better when the design needs muted cyan character, cool temperature, and the specific HEX value #2F4F4F.

Choose Dark Slate GreyDark Slate Grey is better when the design needs muted cyan character, cool temperature, and the specific HEX value #2F4F4F.

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

Technical Comparison Table

PropertyDark Slate GrayDark Slate Grey

HEX#2F4F4F#2F4F4F

RGB47, 79, 7947, 79, 79

HSL180, 25, 25180, 25, 25

CMYK41, 0, 0, 6941, 0, 0, 69

FamilyCyanCyan

TemperatureCoolCool

ToneMutedMuted

Luminance0.06760.0676

Black contrast2.35:12.35:1

White contrast8.93:18.93:1

Shared tonesMuted

Accessibility and Contrast

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

Dark Slate Graywhite text - 8.93:1

Dark Slate Greywhite text - 8.93:1

Related Palette Strip

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

Dark Slate Grey#2F4F4F

#528989#528989

#503030#503030

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": "dark-slate-gray",
    "name": "Dark Slate Gray",
    "hex": "#2F4F4F",
    "rgb": [
      47,
      79,
      79
    ],
    "hsl": [
      180,
      25,
      25
    ],
    "cmyk": [
      41,
      0,
      0,
      69
    ],
    "family": "cyan",
    "temperature": "cool",
    "tone": [
      "muted"
    ],
    "luminance": 0.0676,
    "contrast": {
      "black": 2.35,
      "white": 8.93
    },
    "wcag": {
      "AA": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "AAA": [
        "#FFFFFF",
        "#F5F5F5"
      ]
    },
    "bestText": {
      "text": "#FFFFFF",
      "label": "white text",
      "ratio": 8.93
    },
    "description": "Dark Slate Gray is #2F4F4F, a cool cyan color with muted character. Compared with Dark Slate Grey, it is similar in luminance and similar in saturation. Use it for web design, css color systems, and ui prototyping, with white text as the safer foreground option.",
    "url": "https://www.colorsencyclopedia.com/colors/dark-slate-gray/",
    "apiUrl": "https://www.colorsencyclopedia.com/api/colors/dark-slate-gray.json"
  },
  {
    "slug": "dark-slate-grey",
    "name": "Dark Slate Grey",
    "hex": "#2F4F4F",
    "rgb": [
      47,
      79,
      79
    ],
    "hsl": [
      180,
      25,
      25
    ],
    "cmyk": [
      41,
      0,
      0,
      69
    ],
    "family": "cyan",
    "temperature": "cool",
    "tone": [
      "muted"
    ],
    "luminance": 0.0676,
    "contrast": {
      "black": 2.35,
      "white": 8.93
    },
    "wcag": {
      "AA": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "AAA": [
        "#FFFFFF",
        "#F5F5F5"
      ]
    },
    "bestText": {
      "text": "#FFFFFF",
      "label": "white text",
      "ratio": 8.93
    },
    "description": "Dark Slate Grey is #2F4F4F, a cool cyan color with muted character. Compared with Dark Slate Gray, it is similar in luminance and similar in saturation. Use it for web design, css color systems, and ui prototyping, with white text as the safer foreground option.",
    "url": "https://www.colorsencyclopedia.com/colors/dark-slate-grey/",
    "apiUrl": "https://www.colorsencyclopedia.com/api/colors/dark-slate-grey.json"
  }
]

Differences

{
  "rgbDistance": 0,
  "contrastRatio": 1,
  "hslDelta": {
    "hue": 0,
    "saturation": 0,
    "lightness": 0
  },
  "luminanceDelta": 0,
  "sameFamily": true,
  "sameTemperature": true,
  "sharedTones": [
    "muted"
  ],
  "lighterColor": "Dark Slate Gray",
  "moreSaturatedColor": "Dark Slate Gray"
}

Accessibility

{
  "pairContrastRatio": 1,
  "textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
  "safeText": [
    {
      "color": "Dark Slate Gray",
      "background": "#2F4F4F",
      "foreground": "#FFFFFF",
      "label": "white text",
      "ratio": 8.93
    },
    {
      "color": "Dark Slate Grey",
      "background": "#2F4F4F",
      "foreground": "#FFFFFF",
      "label": "white text",
      "ratio": 8.93
    }
  ]
}

Use cases

{
  "chooseFirstWhen": "Dark Slate Gray is better when the design needs muted cyan character, cool temperature, and the specific HEX value #2F4F4F.",
  "chooseSecondWhen": "Dark Slate Grey is better when the design needs muted cyan character, cool temperature, and the specific HEX value #2F4F4F.",
  "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/dark-slate-gray-vs-dark-slate-grey.json",
  "https://www.colorsencyclopedia.com/api/colors/dark-slate-gray.json",
  "https://www.colorsencyclopedia.com/api/colors/dark-slate-grey.json"
]

Full JSON dataset

{
  "datasetVersion": "1.0.0",
  "slug": "dark-slate-gray-vs-dark-slate-grey",
  "type": "nearest",
  "name": "Dark Slate Gray vs Dark Slate Grey",
  "verdict": "Dark Slate Gray and Dark Slate Grey are very close colors. They have nearly identical luminance. They share similar temperature behavior. Their mutual contrast is 1:1, so the pair is too low for text and better treated as a palette relationship.",
  "summary": "Dark Slate Gray and Dark Slate Grey are different cyan colors with HEX values #2F4F4F and #2F4F4F. According to Colors Encyclopedia, their RGB distance is 0, their contrast ratio is 1:1, and the comparison helps choose between tone, temperature, and accessibility behavior.",
  "rgbDistance": 0,
  "contrastRatio": 1,
  "colors": [
    {
      "slug": "dark-slate-gray",
      "name": "Dark Slate Gray",
      "hex": "#2F4F4F",
      "rgb": [
        47,
        79,
        79
      ],
      "hsl": [
        180,
        25,
        25
      ],
      "cmyk": [
        41,
        0,
        0,
        69
      ],
      "family": "cyan",
      "temperature": "cool",
      "tone": [
        "muted"
      ],
      "luminance": 0.0676,
      "contrast": {
        "black": 2.35,
        "white": 8.93
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": [
          "#FFFFFF",
          "#F5F5F5"
        ]
      },
      "bestText": {
        "text": "#FFFFFF",
        "label": "white text",
        "ratio": 8.93
      },
      "description": "Dark Slate Gray is #2F4F4F, a cool cyan color with muted character. Compared with Dark Slate Grey, it is similar in luminance and similar in saturation. Use it for web design, css color systems, and ui prototyping, with white text as the safer foreground option.",
      "url": "https://www.colorsencyclopedia.com/colors/dark-slate-gray/",
      "apiUrl": "https://www.colorsencyclopedia.com/api/colors/dark-slate-gray.json"
    },
    {
      "slug": "dark-slate-grey",
      "name": "Dark Slate Grey",
      "hex": "#2F4F4F",
      "rgb": [
        47,
        79,
        79
      ],
      "hsl": [
        180,
        25,
        25
      ],
      "cmyk": [
        41,
        0,
        0,
        69
      ],
      "family": "cyan",
      "temperature": "cool",
      "tone": [
        "muted"
      ],
      "luminance": 0.0676,
      "contrast": {
        "black": 2.35,
        "white": 8.93
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": [
          "#FFFFFF",
          "#F5F5F5"
        ]
      },
      "bestText": {
        "text": "#FFFFFF",
        "label": "white text",
        "ratio": 8.93
      },
      "description": "Dark Slate Grey is #2F4F4F, a cool cyan color with muted character. Compared with Dark Slate Gray, it is similar in luminance and similar in saturation. Use it for web design, css color systems, and ui prototyping, with white text as the safer foreground option.",
      "url": "https://www.colorsencyclopedia.com/colors/dark-slate-grey/",
      "apiUrl": "https://www.colorsencyclopedia.com/api/colors/dark-slate-grey.json"
    }
  ],
  "differences": {
    "rgbDistance": 0,
    "contrastRatio": 1,
    "hslDelta": {
      "hue": 0,
      "saturation": 0,
      "lightness": 0
    },
    "luminanceDelta": 0,
    "sameFamily": true,
    "sameTemperature": true,
    "sharedTones": [
      "muted"
    ],
    "lighterColor": "Dark Slate Gray",
    "moreSaturatedColor": "Dark Slate Gray"
  },
  "accessibility": {
    "pairContrastRatio": 1,
    "textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
    "safeText": [
      {
        "color": "Dark Slate Gray",
        "background": "#2F4F4F",
        "foreground": "#FFFFFF",
        "label": "white text",
        "ratio": 8.93
      },
      {
        "color": "Dark Slate Grey",
        "background": "#2F4F4F",
        "foreground": "#FFFFFF",
        "label": "white text",
        "ratio": 8.93
      }
    ]
  },
  "useCases": {
    "chooseFirstWhen": "Dark Slate Gray is better when the design needs muted cyan character, cool temperature, and the specific HEX value #2F4F4F.",
    "chooseSecondWhen": "Dark Slate Grey is better when the design needs muted cyan character, cool temperature, and the specific HEX value #2F4F4F.",
    "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/dark-slate-gray-vs-dark-slate-grey.json",
    "https://www.colorsencyclopedia.com/api/colors/dark-slate-gray.json",
    "https://www.colorsencyclopedia.com/api/colors/dark-slate-grey.json"
  ],
  "url": "https://www.colorsencyclopedia.com/compare/dark-slate-gray-vs-dark-slate-grey/",
  "apiUrl": "https://www.colorsencyclopedia.com/api/compare/dark-slate-gray-vs-dark-slate-grey.json"
}