Nearest-color comparison
Petrol Blue #005F6A vs Peacock Green #006D5B: RGB distance 20.5 and contrast 1.17:1. Compare hue, luminance, saturation, WCAG and practical use.
Petrol Blue and Peacock Green are very close, with an RGB distance of 20.5. Peacock Green is lighter by 0.0246, and their saturation is equal. Their mutual contrast is 1.17:1. The pair is too close for a readable foreground/background combination and works better as neighboring palette colors.
The main measurable differences between Petrol Blue and Peacock Green across RGB distance, luminance, hue, saturation, and contrast.
cyan color
Petrol Blue is #005F6A, a cool cyan with hue 186°, saturation 100% and luminance 0.0923. Beside Peacock Green, it is darker and equally saturated. Of the two standard text choices, white text gives the higher contrast at 7.38:1.
cyan color
Peacock Green is #006D5B, a cool cyan with hue 170°, saturation 100% and luminance 0.1169. Beside Petrol Blue, it is lighter and equally saturated. Of the two standard text choices, white text gives the higher contrast at 6.29:1.
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 Petrol Blue and Peacock Green, 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": "petrol-blue",
"name": "Petrol Blue",
"hex": "#005F6A",
"rgb": [
0,
95,
106
],
"hsl": [
186,
100,
21
],
"cmyk": [
100,
10,
0,
58
],
"family": "cyan",
"temperature": "cool",
"tone": [
"dark"
],
"luminance": 0.0923,
"contrast": {
"black": 2.85,
"white": 7.38
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF"
]
},
"bestText": {
"text": "#FFFFFF",
"label": "white text",
"ratio": 7.38
},
"description": "Petrol Blue is #005F6A, a cool cyan color with dark character. Compared with Peacock Green, it is darker and similar in saturation. Use it for interfaces, brand systems, and technical design, with white text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/petrol-blue/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/petrol-blue.json"
},
{
"slug": "peacock-green",
"name": "Peacock Green",
"hex": "#006D5B",
"rgb": [
0,
109,
91
],
"hsl": [
170,
100,
21
],
"cmyk": [
100,
0,
17,
57
],
"family": "cyan",
"temperature": "cool",
"tone": [
"dark"
],
"luminance": 0.1169,
"contrast": {
"black": 3.34,
"white": 6.29
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": []
},
"bestText": {
"text": "#FFFFFF",
"label": "white text",
"ratio": 6.29
},
"description": "Peacock Green is #006D5B, a cool cyan color with dark character. Compared with Petrol Blue, it is lighter and similar in saturation. Use it for botanical palettes, natural product design, and seasonal editorial palettes, with white text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/peacock-green/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/peacock-green.json"
}
]{
"rgbDistance": 20.5,
"contrastRatio": 1.17,
"hslDelta": {
"hue": 16,
"saturation": 0,
"lightness": 0
},
"luminanceDelta": 0.0246,
"sameFamily": true,
"sameTemperature": true,
"sharedTones": [
"dark"
],
"lighterColor": "Peacock Green",
"moreSaturatedColor": "Petrol Blue"
}{
"pairContrastRatio": 1.17,
"textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
"safeText": [
{
"color": "Petrol Blue",
"background": "#005F6A",
"foreground": "#FFFFFF",
"label": "white text",
"ratio": 7.38
},
{
"color": "Peacock Green",
"background": "#006D5B",
"foreground": "#FFFFFF",
"label": "white text",
"ratio": 6.29
}
]
}{
"chooseFirstWhen": "Petrol Blue is better when the design needs dark cyan character, cool temperature, and the specific HEX value #005F6A.",
"chooseSecondWhen": "Peacock Green is better when the design needs dark cyan character, cool temperature, and the specific HEX value #006D5B.",
"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/petrol-blue-vs-peacock-green.json",
"https://www.colorsencyclopedia.com/api/colors/petrol-blue.json",
"https://www.colorsencyclopedia.com/api/colors/peacock-green.json"
]{
"datasetVersion": "1.0.0",
"slug": "petrol-blue-vs-peacock-green",
"type": "nearest",
"name": "Petrol Blue vs Peacock Green",
"verdict": "Petrol Blue and Peacock Green are very close colors. Peacock 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": "Petrol Blue and Peacock Green are different cyan colors with HEX values #005F6A and #006D5B. According to Colors Encyclopedia, their RGB distance is 20.5, their contrast ratio is 1.17:1, and the comparison helps choose between tone, temperature, and accessibility behavior.",
"rgbDistance": 20.5,
"contrastRatio": 1.17,
"colors": [
{
"slug": "petrol-blue",
"name": "Petrol Blue",
"hex": "#005F6A",
"rgb": [
0,
95,
106
],
"hsl": [
186,
100,
21
],
"cmyk": [
100,
10,
0,
58
],
"family": "cyan",
"temperature": "cool",
"tone": [
"dark"
],
"luminance": 0.0923,
"contrast": {
"black": 2.85,
"white": 7.38
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF"
]
},
"bestText": {
"text": "#FFFFFF",
"label": "white text",
"ratio": 7.38
},
"description": "Petrol Blue is #005F6A, a cool cyan color with dark character. Compared with Peacock Green, it is darker and similar in saturation. Use it for interfaces, brand systems, and technical design, with white text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/petrol-blue/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/petrol-blue.json"
},
{
"slug": "peacock-green",
"name": "Peacock Green",
"hex": "#006D5B",
"rgb": [
0,
109,
91
],
"hsl": [
170,
100,
21
],
"cmyk": [
100,
0,
17,
57
],
"family": "cyan",
"temperature": "cool",
"tone": [
"dark"
],
"luminance": 0.1169,
"contrast": {
"black": 3.34,
"white": 6.29
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": []
},
"bestText": {
"text": "#FFFFFF",
"label": "white text",
"ratio": 6.29
},
"description": "Peacock Green is #006D5B, a cool cyan color with dark character. Compared with Petrol Blue, it is lighter and similar in saturation. Use it for botanical palettes, natural product design, and seasonal editorial palettes, with white text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/peacock-green/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/peacock-green.json"
}
],
"differences": {
"rgbDistance": 20.5,
"contrastRatio": 1.17,
"hslDelta": {
"hue": 16,
"saturation": 0,
"lightness": 0
},
"luminanceDelta": 0.0246,
"sameFamily": true,
"sameTemperature": true,
"sharedTones": [
"dark"
],
"lighterColor": "Peacock Green",
"moreSaturatedColor": "Petrol Blue"
},
"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": "Petrol Blue",
"background": "#005F6A",
"foreground": "#FFFFFF",
"label": "white text",
"ratio": 7.38
},
{
"color": "Peacock Green",
"background": "#006D5B",
"foreground": "#FFFFFF",
"label": "white text",
"ratio": 6.29
}
]
},
"useCases": {
"chooseFirstWhen": "Petrol Blue is better when the design needs dark cyan character, cool temperature, and the specific HEX value #005F6A.",
"chooseSecondWhen": "Peacock Green is better when the design needs dark cyan character, cool temperature, and the specific HEX value #006D5B.",
"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/petrol-blue-vs-peacock-green.json",
"https://www.colorsencyclopedia.com/api/colors/petrol-blue.json",
"https://www.colorsencyclopedia.com/api/colors/peacock-green.json"
],
"url": "https://www.colorsencyclopedia.com/compare/petrol-blue-vs-peacock-green/",
"apiUrl": "https://www.colorsencyclopedia.com/api/compare/petrol-blue-vs-peacock-green.json"
}