Nearest-color comparison
Soapstone #8D9A91 vs Primer Gray #8B8C89: RGB distance 16.2 and contrast 1.15:1. Compare hue, luminance, saturation, WCAG and practical use.
Soapstone and Primer Gray are very close, with an RGB distance of 16.2. Soapstone is lighter by 0.0477, and Soapstone is more saturated by 5 percentage points. Their mutual contrast is 1.15:1. The pair is too close for a readable foreground/background combination and works better as neighboring palette colors.
The main measurable differences between Soapstone and Primer Gray across RGB distance, luminance, hue, saturation, and contrast.
gray color
Soapstone is #8D9A91, a neutral gray with hue 138°, saturation 6% and luminance 0.3082. Beside Primer Gray, it is lighter and more saturated. Of the two standard text choices, black text gives the higher contrast at 7.16:1.
gray color
Primer Gray is #8B8C89, a neutral gray with hue 80°, saturation 1% and luminance 0.2605. Beside Soapstone, it is darker and less saturated. Of the two standard text choices, black text gives the higher contrast at 6.21:1.
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 Soapstone and Primer Gray, 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": "soapstone",
"name": "Soapstone",
"hex": "#8D9A91",
"rgb": [
141,
154,
145
],
"hsl": [
138,
6,
58
],
"cmyk": [
8,
0,
6,
40
],
"family": "gray",
"temperature": "neutral",
"tone": [
"muted"
],
"luminance": 0.3082,
"contrast": {
"black": 7.16,
"white": 2.93
},
"wcag": {
"AA": [
"#000000",
"#1A1A1A"
],
"AAA": [
"#000000"
]
},
"bestText": {
"text": "#000000",
"label": "black text",
"ratio": 7.16
},
"description": "Soapstone is #8D9A91, a neutral gray color with muted character. Compared with Primer Gray, it is lighter and more saturated. Use it for earth-tone palettes, interior design, and material-inspired branding, with black text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/soapstone/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/soapstone.json"
},
{
"slug": "primer-gray",
"name": "Primer Gray",
"hex": "#8B8C89",
"rgb": [
139,
140,
137
],
"hsl": [
80,
1,
54
],
"cmyk": [
1,
0,
2,
45
],
"family": "gray",
"temperature": "neutral",
"tone": [
"muted"
],
"luminance": 0.2605,
"contrast": {
"black": 6.21,
"white": 3.38
},
"wcag": {
"AA": [
"#000000",
"#1A1A1A"
],
"AAA": []
},
"bestText": {
"text": "#000000",
"label": "black text",
"ratio": 6.21
},
"description": "Primer Gray is #8B8C89, a neutral gray color with muted character. Compared with Soapstone, it is darker and less saturated. Use it for industrial design, safety systems, and hardware palettes, with black text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/primer-gray/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/primer-gray.json"
}
]{
"rgbDistance": 16.2,
"contrastRatio": 1.15,
"hslDelta": {
"hue": 58,
"saturation": 5,
"lightness": 4
},
"luminanceDelta": 0.0477,
"sameFamily": true,
"sameTemperature": true,
"sharedTones": [
"muted"
],
"lighterColor": "Soapstone",
"moreSaturatedColor": "Soapstone"
}{
"pairContrastRatio": 1.15,
"textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
"safeText": [
{
"color": "Soapstone",
"background": "#8D9A91",
"foreground": "#000000",
"label": "black text",
"ratio": 7.16
},
{
"color": "Primer Gray",
"background": "#8B8C89",
"foreground": "#000000",
"label": "black text",
"ratio": 6.21
}
]
}{
"chooseFirstWhen": "Soapstone is better when the design needs muted gray character, neutral temperature, and the specific HEX value #8D9A91.",
"chooseSecondWhen": "Primer Gray is better when the design needs muted gray character, neutral temperature, and the specific HEX value #8B8C89.",
"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/soapstone-vs-primer-gray.json",
"https://www.colorsencyclopedia.com/api/colors/soapstone.json",
"https://www.colorsencyclopedia.com/api/colors/primer-gray.json"
]{
"datasetVersion": "1.0.0",
"slug": "soapstone-vs-primer-gray",
"type": "nearest",
"name": "Soapstone vs Primer Gray",
"verdict": "Soapstone and Primer Gray are very close colors. Soapstone is the lighter option. They share similar temperature behavior. Their mutual contrast is 1.15:1, so the pair is too low for text and better treated as a palette relationship.",
"summary": "Soapstone and Primer Gray are different gray colors with HEX values #8D9A91 and #8B8C89. According to Colors Encyclopedia, their RGB distance is 16.2, their contrast ratio is 1.15:1, and the comparison helps choose between tone, temperature, and accessibility behavior.",
"rgbDistance": 16.2,
"contrastRatio": 1.15,
"colors": [
{
"slug": "soapstone",
"name": "Soapstone",
"hex": "#8D9A91",
"rgb": [
141,
154,
145
],
"hsl": [
138,
6,
58
],
"cmyk": [
8,
0,
6,
40
],
"family": "gray",
"temperature": "neutral",
"tone": [
"muted"
],
"luminance": 0.3082,
"contrast": {
"black": 7.16,
"white": 2.93
},
"wcag": {
"AA": [
"#000000",
"#1A1A1A"
],
"AAA": [
"#000000"
]
},
"bestText": {
"text": "#000000",
"label": "black text",
"ratio": 7.16
},
"description": "Soapstone is #8D9A91, a neutral gray color with muted character. Compared with Primer Gray, it is lighter and more saturated. Use it for earth-tone palettes, interior design, and material-inspired branding, with black text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/soapstone/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/soapstone.json"
},
{
"slug": "primer-gray",
"name": "Primer Gray",
"hex": "#8B8C89",
"rgb": [
139,
140,
137
],
"hsl": [
80,
1,
54
],
"cmyk": [
1,
0,
2,
45
],
"family": "gray",
"temperature": "neutral",
"tone": [
"muted"
],
"luminance": 0.2605,
"contrast": {
"black": 6.21,
"white": 3.38
},
"wcag": {
"AA": [
"#000000",
"#1A1A1A"
],
"AAA": []
},
"bestText": {
"text": "#000000",
"label": "black text",
"ratio": 6.21
},
"description": "Primer Gray is #8B8C89, a neutral gray color with muted character. Compared with Soapstone, it is darker and less saturated. Use it for industrial design, safety systems, and hardware palettes, with black text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/primer-gray/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/primer-gray.json"
}
],
"differences": {
"rgbDistance": 16.2,
"contrastRatio": 1.15,
"hslDelta": {
"hue": 58,
"saturation": 5,
"lightness": 4
},
"luminanceDelta": 0.0477,
"sameFamily": true,
"sameTemperature": true,
"sharedTones": [
"muted"
],
"lighterColor": "Soapstone",
"moreSaturatedColor": "Soapstone"
},
"accessibility": {
"pairContrastRatio": 1.15,
"textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
"safeText": [
{
"color": "Soapstone",
"background": "#8D9A91",
"foreground": "#000000",
"label": "black text",
"ratio": 7.16
},
{
"color": "Primer Gray",
"background": "#8B8C89",
"foreground": "#000000",
"label": "black text",
"ratio": 6.21
}
]
},
"useCases": {
"chooseFirstWhen": "Soapstone is better when the design needs muted gray character, neutral temperature, and the specific HEX value #8D9A91.",
"chooseSecondWhen": "Primer Gray is better when the design needs muted gray character, neutral temperature, and the specific HEX value #8B8C89.",
"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/soapstone-vs-primer-gray.json",
"https://www.colorsencyclopedia.com/api/colors/soapstone.json",
"https://www.colorsencyclopedia.com/api/colors/primer-gray.json"
],
"url": "https://www.colorsencyclopedia.com/compare/soapstone-vs-primer-gray/",
"apiUrl": "https://www.colorsencyclopedia.com/api/compare/soapstone-vs-primer-gray.json"
}