Nearest-color comparison
Fog #D7DDE0 vs Aluminum #D9DAD9: RGB distance 7.9 and contrast 1.02:1. Compare hue, luminance, saturation, WCAG and practical use.
Fog and Aluminum are very close, with an RGB distance of 7.9. Fog is lighter by 0.0164, and Fog is more saturated by 12 percentage points. Their mutual contrast is 1.02:1. The pair is too close for a readable foreground/background combination and works better as neighboring palette colors.
The main measurable differences between Fog and Aluminum across RGB distance, luminance, hue, saturation, and contrast.
blue color
Fog is #D7DDE0, a cool blue with hue 200°, saturation 13% and luminance 0.7154. Beside Aluminum, it is lighter and more saturated. Of the two standard text choices, black text gives the higher contrast at 15.31:1.
gray color
Aluminum is #D9DAD9, a neutral gray with hue 120°, saturation 1% and luminance 0.699. Beside Fog, it is darker and less saturated. Of the two standard text choices, black text gives the higher contrast at 14.98:1.
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 Fog and Aluminum, 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": "fog",
"name": "Fog",
"hex": "#D7DDE0",
"rgb": [
215,
221,
224
],
"hsl": [
200,
13,
86
],
"cmyk": [
4,
1,
0,
12
],
"family": "blue",
"temperature": "cool",
"tone": [
"light"
],
"luminance": 0.7154,
"contrast": {
"black": 15.31,
"white": 1.37
},
"wcag": {
"AA": [
"#000000",
"#1A1A1A",
"#36454F"
],
"AAA": [
"#000000",
"#1A1A1A",
"#36454F"
]
},
"bestText": {
"text": "#000000",
"label": "black text",
"ratio": 15.31
},
"description": "Fog is #D7DDE0, a cool blue color with light character. Compared with Aluminum, it is lighter and more saturated. Use it for backgrounds, typography, and product surfaces, with black text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/fog/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/fog.json"
},
{
"slug": "aluminum",
"name": "Aluminum",
"hex": "#D9DAD9",
"rgb": [
217,
218,
217
],
"hsl": [
120,
1,
85
],
"cmyk": [
0,
0,
0,
15
],
"family": "gray",
"temperature": "neutral",
"tone": [
"muted"
],
"luminance": 0.699,
"contrast": {
"black": 14.98,
"white": 1.4
},
"wcag": {
"AA": [
"#000000",
"#1A1A1A",
"#36454F"
],
"AAA": [
"#000000",
"#1A1A1A",
"#36454F"
]
},
"bestText": {
"text": "#000000",
"label": "black text",
"ratio": 14.98
},
"description": "Aluminum is #D9DAD9, a neutral gray color with muted character. Compared with Fog, it is darker and less saturated. Use it for metallic palettes, product finishes, and premium packaging, with black text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/aluminum/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/aluminum.json"
}
]{
"rgbDistance": 7.9,
"contrastRatio": 1.02,
"hslDelta": {
"hue": 80,
"saturation": 12,
"lightness": 1
},
"luminanceDelta": 0.0164,
"sameFamily": false,
"sameTemperature": false,
"sharedTones": [],
"lighterColor": "Fog",
"moreSaturatedColor": "Fog"
}{
"pairContrastRatio": 1.02,
"textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
"safeText": [
{
"color": "Fog",
"background": "#D7DDE0",
"foreground": "#000000",
"label": "black text",
"ratio": 15.31
},
{
"color": "Aluminum",
"background": "#D9DAD9",
"foreground": "#000000",
"label": "black text",
"ratio": 14.98
}
]
}{
"chooseFirstWhen": "Fog is better when the design needs light blue character, cool temperature, and the specific HEX value #D7DDE0.",
"chooseSecondWhen": "Aluminum is better when the design needs muted gray character, neutral temperature, and the specific HEX value #D9DAD9.",
"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/fog-vs-aluminum.json",
"https://www.colorsencyclopedia.com/api/colors/fog.json",
"https://www.colorsencyclopedia.com/api/colors/aluminum.json"
]{
"datasetVersion": "1.0.0",
"slug": "fog-vs-aluminum",
"type": "nearest",
"name": "Fog vs Aluminum",
"verdict": "Fog and Aluminum are very close colors. Fog is the lighter option. They share similar temperature behavior. Their mutual contrast is 1.02:1, so the pair is too low for text and better treated as a palette relationship.",
"summary": "Fog and Aluminum are different blue and gray colors with HEX values #D7DDE0 and #D9DAD9. According to Colors Encyclopedia, their RGB distance is 7.9, their contrast ratio is 1.02:1, and the comparison helps choose between tone, temperature, and accessibility behavior.",
"rgbDistance": 7.9,
"contrastRatio": 1.02,
"colors": [
{
"slug": "fog",
"name": "Fog",
"hex": "#D7DDE0",
"rgb": [
215,
221,
224
],
"hsl": [
200,
13,
86
],
"cmyk": [
4,
1,
0,
12
],
"family": "blue",
"temperature": "cool",
"tone": [
"light"
],
"luminance": 0.7154,
"contrast": {
"black": 15.31,
"white": 1.37
},
"wcag": {
"AA": [
"#000000",
"#1A1A1A",
"#36454F"
],
"AAA": [
"#000000",
"#1A1A1A",
"#36454F"
]
},
"bestText": {
"text": "#000000",
"label": "black text",
"ratio": 15.31
},
"description": "Fog is #D7DDE0, a cool blue color with light character. Compared with Aluminum, it is lighter and more saturated. Use it for backgrounds, typography, and product surfaces, with black text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/fog/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/fog.json"
},
{
"slug": "aluminum",
"name": "Aluminum",
"hex": "#D9DAD9",
"rgb": [
217,
218,
217
],
"hsl": [
120,
1,
85
],
"cmyk": [
0,
0,
0,
15
],
"family": "gray",
"temperature": "neutral",
"tone": [
"muted"
],
"luminance": 0.699,
"contrast": {
"black": 14.98,
"white": 1.4
},
"wcag": {
"AA": [
"#000000",
"#1A1A1A",
"#36454F"
],
"AAA": [
"#000000",
"#1A1A1A",
"#36454F"
]
},
"bestText": {
"text": "#000000",
"label": "black text",
"ratio": 14.98
},
"description": "Aluminum is #D9DAD9, a neutral gray color with muted character. Compared with Fog, it is darker and less saturated. Use it for metallic palettes, product finishes, and premium packaging, with black text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/aluminum/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/aluminum.json"
}
],
"differences": {
"rgbDistance": 7.9,
"contrastRatio": 1.02,
"hslDelta": {
"hue": 80,
"saturation": 12,
"lightness": 1
},
"luminanceDelta": 0.0164,
"sameFamily": false,
"sameTemperature": false,
"sharedTones": [],
"lighterColor": "Fog",
"moreSaturatedColor": "Fog"
},
"accessibility": {
"pairContrastRatio": 1.02,
"textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
"safeText": [
{
"color": "Fog",
"background": "#D7DDE0",
"foreground": "#000000",
"label": "black text",
"ratio": 15.31
},
{
"color": "Aluminum",
"background": "#D9DAD9",
"foreground": "#000000",
"label": "black text",
"ratio": 14.98
}
]
},
"useCases": {
"chooseFirstWhen": "Fog is better when the design needs light blue character, cool temperature, and the specific HEX value #D7DDE0.",
"chooseSecondWhen": "Aluminum is better when the design needs muted gray character, neutral temperature, and the specific HEX value #D9DAD9.",
"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/fog-vs-aluminum.json",
"https://www.colorsencyclopedia.com/api/colors/fog.json",
"https://www.colorsencyclopedia.com/api/colors/aluminum.json"
],
"url": "https://www.colorsencyclopedia.com/compare/fog-vs-aluminum/",
"apiUrl": "https://www.colorsencyclopedia.com/api/compare/fog-vs-aluminum.json"
}