Nearest-color comparison

Fern Green vs Dark Olive Green

Fern Green and Dark Olive Green are different green colors with HEX values #4F7942 and #556B2F. According to Colors Encyclopedia, their RGB distance is 24.4, their contrast ratio is 1.17:1, and the comparison helps choose between tone, temperature, and accessibility behavior.

Fern Green and Dark Olive Green are very close colors. Fern Green is the lighter option. They share similar temperature behavior. Their mutual contrast is 1.17:1, so the pair is too low for text and better treated as a palette relationship.

Fern Green#4F7942
Dark Olive Green#556B2F

Quick Difference Summary

The main measurable differences between Fern Green and Dark Olive Green across RGB distance, luminance, hue, saturation, and contrast.

RGB distance24.4
Pair contrast1.17:1
Luminance delta0.0308
Hue delta24 deg
Lighter colorFern Green
More saturatedDark Olive Green

Side-by-Side Color Profiles

green color

Fern Green

Fern Green is #4F7942, a cool green color with earth tone character. Compared with Dark Olive Green, it is lighter and less saturated. Use it for natural palettes, wellness branding, and sustainability design, with white text as the safer foreground option.

HEX#4F7942 RGB79, 121, 66 HSL106, 29, 37 CMYK35, 0, 45, 53 Luminance0.1573 Best textwhite text

green color

Dark Olive Green

Dark Olive Green is #556B2F, a cool green color with earth tone character. Compared with Fern Green, it is darker and more saturated. Use it for web design, css color systems, and ui prototyping, with white text as the safer foreground option.

HEX#556B2F RGB85, 107, 47 HSL82, 39, 30 CMYK21, 0, 56, 58 Luminance0.1265 Best textwhite text

When to Use Fern Green or Dark Olive Green

Choose Fern GreenFern Green is better when the design needs earth tone green character, cool temperature, and the specific HEX value #4F7942.
Choose Dark Olive GreenDark Olive Green is better when the design needs earth tone green character, cool temperature, and the specific HEX value #556B2F.
Use togetherUse these colors together as related palette neighbors, subtle material differences, or tonal alternatives rather than readable foreground/background pairs.

Technical Comparison Table

PropertyFern GreenDark Olive Green
HEX#4F7942#556B2F
RGB79, 121, 6685, 107, 47
HSL106, 29, 3782, 39, 30
CMYK35, 0, 45, 5321, 0, 56, 58
FamilyGreenGreen
TemperatureCoolCool
ToneEarth ToneEarth Tone
Luminance0.15730.1265
Black contrast4.15:13.53:1
White contrast5.07:15.95:1
Shared tonesEarth Tone

Accessibility and Contrast

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

Fern Greenwhite text - 5.07:1
Dark Olive Greenwhite text - 5.95:1

Related Palette Strip

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

Fern Green#4F7942
Dark Olive Green#556B2F
#7BAE6B#7BAE6B
#87AA4B#87AA4B
#6D437A#6D437A
#452F6A#452F6A

Machine-readable data

Machine-Readable Fern Green vs Dark Olive Green Data (JSON)

Structured comparison data for Fern Green and Dark Olive Green, including color systems, RGB distance, HSL deltas, contrast, accessibility guidance, use cases, and API links.

AI-Ready Dataset v1.0.0
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
Download JSON Open API
Structured sections
Colors
[
  {
    "slug": "fern-green",
    "name": "Fern Green",
    "hex": "#4F7942",
    "rgb": [
      79,
      121,
      66
    ],
    "hsl": [
      106,
      29,
      37
    ],
    "cmyk": [
      35,
      0,
      45,
      53
    ],
    "family": "green",
    "temperature": "cool",
    "tone": [
      "earth-tone"
    ],
    "luminance": 0.1573,
    "contrast": {
      "black": 4.15,
      "white": 5.07
    },
    "wcag": {
      "AA": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "AAA": []
    },
    "bestText": {
      "text": "#FFFFFF",
      "label": "white text",
      "ratio": 5.07
    },
    "description": "Fern Green is #4F7942, a cool green color with earth tone character. Compared with Dark Olive Green, it is lighter and less saturated. Use it for natural palettes, wellness branding, and sustainability design, with white text as the safer foreground option.",
    "url": "https://www.colorsencyclopedia.com/colors/fern-green/",
    "apiUrl": "https://www.colorsencyclopedia.com/api/colors/fern-green.json"
  },
  {
    "slug": "dark-olive-green",
    "name": "Dark Olive Green",
    "hex": "#556B2F",
    "rgb": [
      85,
      107,
      47
    ],
    "hsl": [
      82,
      39,
      30
    ],
    "cmyk": [
      21,
      0,
      56,
      58
    ],
    "family": "green",
    "temperature": "cool",
    "tone": [
      "earth-tone"
    ],
    "luminance": 0.1265,
    "contrast": {
      "black": 3.53,
      "white": 5.95
    },
    "wcag": {
      "AA": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "AAA": []
    },
    "bestText": {
      "text": "#FFFFFF",
      "label": "white text",
      "ratio": 5.95
    },
    "description": "Dark Olive Green is #556B2F, a cool green color with earth tone character. Compared with Fern Green, it is darker and more saturated. 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-olive-green/",
    "apiUrl": "https://www.colorsencyclopedia.com/api/colors/dark-olive-green.json"
  }
]
Differences
{
  "rgbDistance": 24.4,
  "contrastRatio": 1.17,
  "hslDelta": {
    "hue": 24,
    "saturation": 10,
    "lightness": 7
  },
  "luminanceDelta": 0.0308,
  "sameFamily": true,
  "sameTemperature": true,
  "sharedTones": [
    "earth-tone"
  ],
  "lighterColor": "Fern Green",
  "moreSaturatedColor": "Dark Olive Green"
}
Accessibility
{
  "pairContrastRatio": 1.17,
  "textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
  "safeText": [
    {
      "color": "Fern Green",
      "background": "#4F7942",
      "foreground": "#FFFFFF",
      "label": "white text",
      "ratio": 5.07
    },
    {
      "color": "Dark Olive Green",
      "background": "#556B2F",
      "foreground": "#FFFFFF",
      "label": "white text",
      "ratio": 5.95
    }
  ]
}
Use cases
{
  "chooseFirstWhen": "Fern Green is better when the design needs earth tone green character, cool temperature, and the specific HEX value #4F7942.",
  "chooseSecondWhen": "Dark Olive Green is better when the design needs earth tone green character, cool temperature, and the specific HEX value #556B2F.",
  "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/fern-green-vs-dark-olive-green.json",
  "https://www.colorsencyclopedia.com/api/colors/fern-green.json",
  "https://www.colorsencyclopedia.com/api/colors/dark-olive-green.json"
]
Full JSON dataset
{
  "datasetVersion": "1.0.0",
  "slug": "fern-green-vs-dark-olive-green",
  "type": "nearest",
  "name": "Fern Green vs Dark Olive Green",
  "verdict": "Fern Green and Dark Olive Green are very close colors. Fern Green is the lighter option. They share similar temperature behavior. Their mutual contrast is 1.17:1, so the pair is too low for text and better treated as a palette relationship.",
  "summary": "Fern Green and Dark Olive Green are different green colors with HEX values #4F7942 and #556B2F. According to Colors Encyclopedia, their RGB distance is 24.4, their contrast ratio is 1.17:1, and the comparison helps choose between tone, temperature, and accessibility behavior.",
  "rgbDistance": 24.4,
  "contrastRatio": 1.17,
  "colors": [
    {
      "slug": "fern-green",
      "name": "Fern Green",
      "hex": "#4F7942",
      "rgb": [
        79,
        121,
        66
      ],
      "hsl": [
        106,
        29,
        37
      ],
      "cmyk": [
        35,
        0,
        45,
        53
      ],
      "family": "green",
      "temperature": "cool",
      "tone": [
        "earth-tone"
      ],
      "luminance": 0.1573,
      "contrast": {
        "black": 4.15,
        "white": 5.07
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": []
      },
      "bestText": {
        "text": "#FFFFFF",
        "label": "white text",
        "ratio": 5.07
      },
      "description": "Fern Green is #4F7942, a cool green color with earth tone character. Compared with Dark Olive Green, it is lighter and less saturated. Use it for natural palettes, wellness branding, and sustainability design, with white text as the safer foreground option.",
      "url": "https://www.colorsencyclopedia.com/colors/fern-green/",
      "apiUrl": "https://www.colorsencyclopedia.com/api/colors/fern-green.json"
    },
    {
      "slug": "dark-olive-green",
      "name": "Dark Olive Green",
      "hex": "#556B2F",
      "rgb": [
        85,
        107,
        47
      ],
      "hsl": [
        82,
        39,
        30
      ],
      "cmyk": [
        21,
        0,
        56,
        58
      ],
      "family": "green",
      "temperature": "cool",
      "tone": [
        "earth-tone"
      ],
      "luminance": 0.1265,
      "contrast": {
        "black": 3.53,
        "white": 5.95
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": []
      },
      "bestText": {
        "text": "#FFFFFF",
        "label": "white text",
        "ratio": 5.95
      },
      "description": "Dark Olive Green is #556B2F, a cool green color with earth tone character. Compared with Fern Green, it is darker and more saturated. 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-olive-green/",
      "apiUrl": "https://www.colorsencyclopedia.com/api/colors/dark-olive-green.json"
    }
  ],
  "differences": {
    "rgbDistance": 24.4,
    "contrastRatio": 1.17,
    "hslDelta": {
      "hue": 24,
      "saturation": 10,
      "lightness": 7
    },
    "luminanceDelta": 0.0308,
    "sameFamily": true,
    "sameTemperature": true,
    "sharedTones": [
      "earth-tone"
    ],
    "lighterColor": "Fern Green",
    "moreSaturatedColor": "Dark Olive Green"
  },
  "accessibility": {
    "pairContrastRatio": 1.17,
    "textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
    "safeText": [
      {
        "color": "Fern Green",
        "background": "#4F7942",
        "foreground": "#FFFFFF",
        "label": "white text",
        "ratio": 5.07
      },
      {
        "color": "Dark Olive Green",
        "background": "#556B2F",
        "foreground": "#FFFFFF",
        "label": "white text",
        "ratio": 5.95
      }
    ]
  },
  "useCases": {
    "chooseFirstWhen": "Fern Green is better when the design needs earth tone green character, cool temperature, and the specific HEX value #4F7942.",
    "chooseSecondWhen": "Dark Olive Green is better when the design needs earth tone green character, cool temperature, and the specific HEX value #556B2F.",
    "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/fern-green-vs-dark-olive-green.json",
    "https://www.colorsencyclopedia.com/api/colors/fern-green.json",
    "https://www.colorsencyclopedia.com/api/colors/dark-olive-green.json"
  ],
  "url": "https://www.colorsencyclopedia.com/compare/fern-green-vs-dark-olive-green/",
  "apiUrl": "https://www.colorsencyclopedia.com/api/compare/fern-green-vs-dark-olive-green.json"
}