Nearest-color comparison

International Orange vs Orange Red

International Orange and Orange Red are different orange colors with HEX values #FF4F00 and #FF4500. According to Colors Encyclopedia, their RGB distance is 10, their contrast ratio is 1.04:1, and the comparison helps choose between tone, temperature, and accessibility behavior.

International Orange and Orange Red are very close colors. International Orange is the lighter option. They share similar temperature behavior. Their mutual contrast is 1.04:1, so the pair is too low for text and better treated as a palette relationship.

Differences Use cases Accessibility JSON

International Orange#FF4F00

Orange Red#FF4500

Quick Difference Summary

The main measurable differences between International Orange and Orange Red across RGB distance, luminance, hue, saturation, and contrast.

RGB distance10

Pair contrast1.04:1

Luminance delta0.0133

Hue delta3 deg

Lighter colorInternational Orange

More saturatedInternational Orange

Side-by-Side Color Profiles

orange color

International Orange

International Orange is #FF4F00, a warm orange color with vibrant character. Compared with Orange Red, it is lighter and similar in saturation. Use it for historical references, pigment palettes, and cultural color systems, with black text as the safer foreground option.

HEX#FF4F00 RGB255, 79, 0 HSL19, 100, 50 CMYK0, 69, 100, 0 Luminance0.2685 Best textblack text

Color page WCAG HEX atlas

orange color

Orange Red

Orange Red is #FF4500, a warm orange color with vibrant character. Compared with International Orange, it is darker and similar in saturation. Use it for web design, css color systems, and ui prototyping, with black text as the safer foreground option.

HEX#FF4500 RGB255, 69, 0 HSL16, 100, 50 CMYK0, 73, 100, 0 Luminance0.2552 Best textblack text

Color page WCAG HEX atlas

When to Use International Orange or Orange Red

Choose International OrangeInternational Orange is better when the design needs vibrant orange character, warm temperature, and the specific HEX value #FF4F00.

Choose Orange RedOrange Red is better when the design needs vibrant orange character, warm temperature, and the specific HEX value #FF4500.

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

Technical Comparison Table

PropertyInternational OrangeOrange Red

HEX#FF4F00#FF4500

RGB255, 79, 0255, 69, 0

HSL19, 100, 5016, 100, 50

CMYK0, 69, 100, 00, 73, 100, 0

FamilyOrangeOrange

TemperatureWarmWarm

ToneVibrantVibrant

Luminance0.26850.2552

Black contrast6.37:16.1:1

White contrast3.3:13.44:1

Shared tonesVibrant

Accessibility and Contrast

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

International Orangeblack text - 6.37:1

Orange Redblack text - 6.1:1

Related Palette Strip

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

International Orange#FF4F00

Orange Red#FF4500

#FF8F5C#FF8F5C

#FF875C#FF875C

#00AEFF#00AEFF

#00BBFF#00BBFF

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": "international-orange",
    "name": "International Orange",
    "hex": "#FF4F00",
    "rgb": [
      255,
      79,
      0
    ],
    "hsl": [
      19,
      100,
      50
    ],
    "cmyk": [
      0,
      69,
      100,
      0
    ],
    "family": "orange",
    "temperature": "warm",
    "tone": [
      "vibrant"
    ],
    "luminance": 0.2685,
    "contrast": {
      "black": 6.37,
      "white": 3.3
    },
    "wcag": {
      "AA": [
        "#000000",
        "#1A1A1A"
      ],
      "AAA": []
    },
    "bestText": {
      "text": "#000000",
      "label": "black text",
      "ratio": 6.37
    },
    "description": "International Orange is #FF4F00, a warm orange color with vibrant character. Compared with Orange Red, it is lighter and similar in saturation. Use it for historical references, pigment palettes, and cultural color systems, with black text as the safer foreground option.",
    "url": "https://www.colorsencyclopedia.com/colors/international-orange/",
    "apiUrl": "https://www.colorsencyclopedia.com/api/colors/international-orange.json"
  },
  {
    "slug": "orange-red",
    "name": "Orange Red",
    "hex": "#FF4500",
    "rgb": [
      255,
      69,
      0
    ],
    "hsl": [
      16,
      100,
      50
    ],
    "cmyk": [
      0,
      73,
      100,
      0
    ],
    "family": "orange",
    "temperature": "warm",
    "tone": [
      "vibrant"
    ],
    "luminance": 0.2552,
    "contrast": {
      "black": 6.1,
      "white": 3.44
    },
    "wcag": {
      "AA": [
        "#000000",
        "#1A1A1A"
      ],
      "AAA": []
    },
    "bestText": {
      "text": "#000000",
      "label": "black text",
      "ratio": 6.1
    },
    "description": "Orange Red is #FF4500, a warm orange color with vibrant character. Compared with International Orange, it is darker and similar in saturation. Use it for web design, css color systems, and ui prototyping, with black text as the safer foreground option.",
    "url": "https://www.colorsencyclopedia.com/colors/orange-red/",
    "apiUrl": "https://www.colorsencyclopedia.com/api/colors/orange-red.json"
  }
]

Differences

{
  "rgbDistance": 10,
  "contrastRatio": 1.04,
  "hslDelta": {
    "hue": 3,
    "saturation": 0,
    "lightness": 0
  },
  "luminanceDelta": 0.0133,
  "sameFamily": true,
  "sameTemperature": true,
  "sharedTones": [
    "vibrant"
  ],
  "lighterColor": "International Orange",
  "moreSaturatedColor": "International Orange"
}

Accessibility

{
  "pairContrastRatio": 1.04,
  "textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
  "safeText": [
    {
      "color": "International Orange",
      "background": "#FF4F00",
      "foreground": "#000000",
      "label": "black text",
      "ratio": 6.37
    },
    {
      "color": "Orange Red",
      "background": "#FF4500",
      "foreground": "#000000",
      "label": "black text",
      "ratio": 6.1
    }
  ]
}

Use cases

{
  "chooseFirstWhen": "International Orange is better when the design needs vibrant orange character, warm temperature, and the specific HEX value #FF4F00.",
  "chooseSecondWhen": "Orange Red is better when the design needs vibrant orange character, warm temperature, and the specific HEX value #FF4500.",
  "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/international-orange-vs-orange-red.json",
  "https://www.colorsencyclopedia.com/api/colors/international-orange.json",
  "https://www.colorsencyclopedia.com/api/colors/orange-red.json"
]

Full JSON dataset

{
  "datasetVersion": "1.0.0",
  "slug": "international-orange-vs-orange-red",
  "type": "nearest",
  "name": "International Orange vs Orange Red",
  "verdict": "International Orange and Orange Red are very close colors. International Orange is the lighter option. They share similar temperature behavior. Their mutual contrast is 1.04:1, so the pair is too low for text and better treated as a palette relationship.",
  "summary": "International Orange and Orange Red are different orange colors with HEX values #FF4F00 and #FF4500. According to Colors Encyclopedia, their RGB distance is 10, their contrast ratio is 1.04:1, and the comparison helps choose between tone, temperature, and accessibility behavior.",
  "rgbDistance": 10,
  "contrastRatio": 1.04,
  "colors": [
    {
      "slug": "international-orange",
      "name": "International Orange",
      "hex": "#FF4F00",
      "rgb": [
        255,
        79,
        0
      ],
      "hsl": [
        19,
        100,
        50
      ],
      "cmyk": [
        0,
        69,
        100,
        0
      ],
      "family": "orange",
      "temperature": "warm",
      "tone": [
        "vibrant"
      ],
      "luminance": 0.2685,
      "contrast": {
        "black": 6.37,
        "white": 3.3
      },
      "wcag": {
        "AA": [
          "#000000",
          "#1A1A1A"
        ],
        "AAA": []
      },
      "bestText": {
        "text": "#000000",
        "label": "black text",
        "ratio": 6.37
      },
      "description": "International Orange is #FF4F00, a warm orange color with vibrant character. Compared with Orange Red, it is lighter and similar in saturation. Use it for historical references, pigment palettes, and cultural color systems, with black text as the safer foreground option.",
      "url": "https://www.colorsencyclopedia.com/colors/international-orange/",
      "apiUrl": "https://www.colorsencyclopedia.com/api/colors/international-orange.json"
    },
    {
      "slug": "orange-red",
      "name": "Orange Red",
      "hex": "#FF4500",
      "rgb": [
        255,
        69,
        0
      ],
      "hsl": [
        16,
        100,
        50
      ],
      "cmyk": [
        0,
        73,
        100,
        0
      ],
      "family": "orange",
      "temperature": "warm",
      "tone": [
        "vibrant"
      ],
      "luminance": 0.2552,
      "contrast": {
        "black": 6.1,
        "white": 3.44
      },
      "wcag": {
        "AA": [
          "#000000",
          "#1A1A1A"
        ],
        "AAA": []
      },
      "bestText": {
        "text": "#000000",
        "label": "black text",
        "ratio": 6.1
      },
      "description": "Orange Red is #FF4500, a warm orange color with vibrant character. Compared with International Orange, it is darker and similar in saturation. Use it for web design, css color systems, and ui prototyping, with black text as the safer foreground option.",
      "url": "https://www.colorsencyclopedia.com/colors/orange-red/",
      "apiUrl": "https://www.colorsencyclopedia.com/api/colors/orange-red.json"
    }
  ],
  "differences": {
    "rgbDistance": 10,
    "contrastRatio": 1.04,
    "hslDelta": {
      "hue": 3,
      "saturation": 0,
      "lightness": 0
    },
    "luminanceDelta": 0.0133,
    "sameFamily": true,
    "sameTemperature": true,
    "sharedTones": [
      "vibrant"
    ],
    "lighterColor": "International Orange",
    "moreSaturatedColor": "International Orange"
  },
  "accessibility": {
    "pairContrastRatio": 1.04,
    "textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
    "safeText": [
      {
        "color": "International Orange",
        "background": "#FF4F00",
        "foreground": "#000000",
        "label": "black text",
        "ratio": 6.37
      },
      {
        "color": "Orange Red",
        "background": "#FF4500",
        "foreground": "#000000",
        "label": "black text",
        "ratio": 6.1
      }
    ]
  },
  "useCases": {
    "chooseFirstWhen": "International Orange is better when the design needs vibrant orange character, warm temperature, and the specific HEX value #FF4F00.",
    "chooseSecondWhen": "Orange Red is better when the design needs vibrant orange character, warm temperature, and the specific HEX value #FF4500.",
    "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/international-orange-vs-orange-red.json",
    "https://www.colorsencyclopedia.com/api/colors/international-orange.json",
    "https://www.colorsencyclopedia.com/api/colors/orange-red.json"
  ],
  "url": "https://www.colorsencyclopedia.com/compare/international-orange-vs-orange-red/",
  "apiUrl": "https://www.colorsencyclopedia.com/api/compare/international-orange-vs-orange-red.json"
}