Nearest-color comparison
Dark Gray #A9A9A9 vs Dark Grey #A9A9A9: RGB distance 0 and contrast 1:1. Compare hue, luminance, saturation, WCAG and practical use.
Dark Gray and Dark Grey are very close, with an RGB distance of 0. Their luminance is equal, and their saturation is equal. Their mutual contrast is 1:1. The pair is too close for a readable foreground/background combination and works better as neighboring palette colors.
The main measurable differences between Dark Gray and Dark Grey across RGB distance, luminance, hue, saturation, and contrast.
gray color
Dark Gray is #A9A9A9, a neutral gray with hue 0°, saturation 0% and luminance 0.3968. Beside Dark Grey, it is equal in luminance and equally saturated. Of the two standard text choices, black text gives the higher contrast at 8.94:1.
gray color
Dark Grey is #A9A9A9, a neutral gray with hue 0°, saturation 0% and luminance 0.3968. Beside Dark Gray, it is equal in luminance and equally saturated. Of the two standard text choices, black text gives the higher contrast at 8.94:1.
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 Dark Gray and Dark Grey, 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": "dark-gray",
"name": "Dark Gray",
"hex": "#A9A9A9",
"rgb": [
169,
169,
169
],
"hsl": [
0,
0,
66
],
"cmyk": [
0,
0,
0,
34
],
"family": "gray",
"temperature": "neutral",
"tone": [
"muted"
],
"luminance": 0.3968,
"contrast": {
"black": 8.94,
"white": 2.35
},
"wcag": {
"AA": [
"#000000",
"#1A1A1A"
],
"AAA": [
"#000000",
"#1A1A1A"
]
},
"bestText": {
"text": "#000000",
"label": "black text",
"ratio": 8.94
},
"description": "Dark Gray is #A9A9A9, a neutral gray color with muted character. Compared with Dark Grey, it is similar in luminance 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/dark-gray/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/dark-gray.json"
},
{
"slug": "dark-grey",
"name": "Dark Grey",
"hex": "#A9A9A9",
"rgb": [
169,
169,
169
],
"hsl": [
0,
0,
66
],
"cmyk": [
0,
0,
0,
34
],
"family": "gray",
"temperature": "neutral",
"tone": [
"muted"
],
"luminance": 0.3968,
"contrast": {
"black": 8.94,
"white": 2.35
},
"wcag": {
"AA": [
"#000000",
"#1A1A1A"
],
"AAA": [
"#000000",
"#1A1A1A"
]
},
"bestText": {
"text": "#000000",
"label": "black text",
"ratio": 8.94
},
"description": "Dark Grey is #A9A9A9, a neutral gray color with muted character. Compared with Dark Gray, it is similar in luminance 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/dark-grey/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/dark-grey.json"
}
]{
"rgbDistance": 0,
"contrastRatio": 1,
"hslDelta": {
"hue": 0,
"saturation": 0,
"lightness": 0
},
"luminanceDelta": 0,
"sameFamily": true,
"sameTemperature": true,
"sharedTones": [
"muted"
],
"lighterColor": "Dark Gray",
"moreSaturatedColor": "Dark Gray"
}{
"pairContrastRatio": 1,
"textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
"safeText": [
{
"color": "Dark Gray",
"background": "#A9A9A9",
"foreground": "#000000",
"label": "black text",
"ratio": 8.94
},
{
"color": "Dark Grey",
"background": "#A9A9A9",
"foreground": "#000000",
"label": "black text",
"ratio": 8.94
}
]
}{
"chooseFirstWhen": "Dark Gray is better when the design needs muted gray character, neutral temperature, and the specific HEX value #A9A9A9.",
"chooseSecondWhen": "Dark Grey is better when the design needs muted gray character, neutral temperature, and the specific HEX value #A9A9A9.",
"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/dark-gray-vs-dark-grey.json",
"https://www.colorsencyclopedia.com/api/colors/dark-gray.json",
"https://www.colorsencyclopedia.com/api/colors/dark-grey.json"
]{
"datasetVersion": "1.0.0",
"slug": "dark-gray-vs-dark-grey",
"type": "nearest",
"name": "Dark Gray vs Dark Grey",
"verdict": "Dark Gray and Dark 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 Gray and Dark Grey are different gray colors with HEX values #A9A9A9 and #A9A9A9. 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-gray",
"name": "Dark Gray",
"hex": "#A9A9A9",
"rgb": [
169,
169,
169
],
"hsl": [
0,
0,
66
],
"cmyk": [
0,
0,
0,
34
],
"family": "gray",
"temperature": "neutral",
"tone": [
"muted"
],
"luminance": 0.3968,
"contrast": {
"black": 8.94,
"white": 2.35
},
"wcag": {
"AA": [
"#000000",
"#1A1A1A"
],
"AAA": [
"#000000",
"#1A1A1A"
]
},
"bestText": {
"text": "#000000",
"label": "black text",
"ratio": 8.94
},
"description": "Dark Gray is #A9A9A9, a neutral gray color with muted character. Compared with Dark Grey, it is similar in luminance 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/dark-gray/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/dark-gray.json"
},
{
"slug": "dark-grey",
"name": "Dark Grey",
"hex": "#A9A9A9",
"rgb": [
169,
169,
169
],
"hsl": [
0,
0,
66
],
"cmyk": [
0,
0,
0,
34
],
"family": "gray",
"temperature": "neutral",
"tone": [
"muted"
],
"luminance": 0.3968,
"contrast": {
"black": 8.94,
"white": 2.35
},
"wcag": {
"AA": [
"#000000",
"#1A1A1A"
],
"AAA": [
"#000000",
"#1A1A1A"
]
},
"bestText": {
"text": "#000000",
"label": "black text",
"ratio": 8.94
},
"description": "Dark Grey is #A9A9A9, a neutral gray color with muted character. Compared with Dark Gray, it is similar in luminance 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/dark-grey/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/dark-grey.json"
}
],
"differences": {
"rgbDistance": 0,
"contrastRatio": 1,
"hslDelta": {
"hue": 0,
"saturation": 0,
"lightness": 0
},
"luminanceDelta": 0,
"sameFamily": true,
"sameTemperature": true,
"sharedTones": [
"muted"
],
"lighterColor": "Dark Gray",
"moreSaturatedColor": "Dark 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 Gray",
"background": "#A9A9A9",
"foreground": "#000000",
"label": "black text",
"ratio": 8.94
},
{
"color": "Dark Grey",
"background": "#A9A9A9",
"foreground": "#000000",
"label": "black text",
"ratio": 8.94
}
]
},
"useCases": {
"chooseFirstWhen": "Dark Gray is better when the design needs muted gray character, neutral temperature, and the specific HEX value #A9A9A9.",
"chooseSecondWhen": "Dark Grey is better when the design needs muted gray character, neutral temperature, and the specific HEX value #A9A9A9.",
"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-gray-vs-dark-grey.json",
"https://www.colorsencyclopedia.com/api/colors/dark-gray.json",
"https://www.colorsencyclopedia.com/api/colors/dark-grey.json"
],
"url": "https://www.colorsencyclopedia.com/compare/dark-gray-vs-dark-grey/",
"apiUrl": "https://www.colorsencyclopedia.com/api/compare/dark-gray-vs-dark-grey.json"
}