Nearest-color comparison
International Orange #FF4F00 vs Orange Red #FF4500: RGB distance 10 and contrast 1.04:1. Compare hue, luminance, saturation, WCAG and practical use.
International Orange and Orange Red are very close, with an RGB distance of 10. International Orange is lighter by 0.0133, and their saturation is equal. Their mutual contrast is 1.04:1. The pair is too close for a readable foreground/background combination and works better as neighboring palette colors.
The main measurable differences between International Orange and Orange Red across RGB distance, luminance, hue, saturation, and contrast.
orange color
International Orange is #FF4F00, a warm orange with hue 19°, saturation 100% and luminance 0.2685. Beside Orange Red, it is lighter and equally saturated. Of the two standard text choices, black text gives the higher contrast at 6.37:1.
orange color
Orange Red is #FF4500, a warm orange with hue 16°, saturation 100% and luminance 0.2552. Beside International Orange, it is darker and equally saturated. Of the two standard text choices, black text gives the higher contrast at 6.1:1.
Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.
Downloadable color comparison infographic
Save a high-resolution comparison infographic with both HEX colors, visual distance, mutual contrast, and accessibility guidance.
A compact visual strip showing the two compared colors with nearby harmony and variant context.
Machine-readable data
Structured comparison data for International Orange and Orange Red, including color systems, RGB distance, HSL deltas, contrast, accessibility guidance, use cases, and API links.
Colors Encyclopedia
colorsBoth named color records with HEX, RGB, HSL, CMYK, luminance, WCAG, and linksdifferencesRGB distance, HSL deltas, luminance delta, contrast, and shared attributesaccessibilityPair contrast and safer text choices for each coloruseCasesWhen to choose each color and when to use them togetherrelatedApiMachine-readable comparison and color endpoints[
{
"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"
}
]{
"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"
}{
"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
}
]
}{
"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."
}[
"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"
]{
"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"
}