Nearest-color comparison
Stone #8A817C vs Warm Gray #8A8378: RGB distance 4.5 and contrast 1.02:1. Compare hue, luminance, saturation, WCAG and practical use.
Stone and Warm Gray are very close, with an RGB distance of 4.5. Warm Gray is lighter by 0.0043, and Warm Gray is more saturated by 1 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 Stone and Warm Gray across RGB distance, luminance, hue, saturation, and contrast.
gray color
Stone is #8A817C, a neutral gray with hue 21°, saturation 6% and luminance 0.2256. Beside Warm Gray, it is darker and less saturated. Of the two standard text choices, black text gives the higher contrast at 5.51:1.
gray color
Warm Gray is #8A8378, a neutral gray with hue 37°, saturation 7% and luminance 0.2299. Beside Stone, it is lighter and more saturated. Of the two standard text choices, black text gives the higher contrast at 5.6:1.
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 Stone and Warm 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": "stone",
"name": "Stone",
"hex": "#8A817C",
"rgb": [
138,
129,
124
],
"hsl": [
21,
6,
51
],
"cmyk": [
0,
7,
10,
46
],
"family": "gray",
"temperature": "neutral",
"tone": [
"muted"
],
"luminance": 0.2256,
"contrast": {
"black": 5.51,
"white": 3.81
},
"wcag": {
"AA": [
"#000000",
"#1A1A1A"
],
"AAA": []
},
"bestText": {
"text": "#000000",
"label": "black text",
"ratio": 5.51
},
"description": "Stone is #8A817C, a neutral gray color with muted character. Compared with Warm Gray, it is darker and less saturated. Use it for backgrounds, typography, and product surfaces, with black text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/stone/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/stone.json"
},
{
"slug": "warm-gray",
"name": "Warm Gray",
"hex": "#8A8378",
"rgb": [
138,
131,
120
],
"hsl": [
37,
7,
51
],
"cmyk": [
0,
5,
13,
46
],
"family": "gray",
"temperature": "neutral",
"tone": [
"muted"
],
"luminance": 0.2299,
"contrast": {
"black": 5.6,
"white": 3.75
},
"wcag": {
"AA": [
"#000000",
"#1A1A1A"
],
"AAA": []
},
"bestText": {
"text": "#000000",
"label": "black text",
"ratio": 5.6
},
"description": "Warm Gray is #8A8378, a neutral gray color with muted character. Compared with Stone, 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/warm-gray/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/warm-gray.json"
}
]{
"rgbDistance": 4.5,
"contrastRatio": 1.02,
"hslDelta": {
"hue": 16,
"saturation": 1,
"lightness": 0
},
"luminanceDelta": 0.0043,
"sameFamily": true,
"sameTemperature": true,
"sharedTones": [
"muted"
],
"lighterColor": "Warm Gray",
"moreSaturatedColor": "Warm Gray"
}{
"pairContrastRatio": 1.02,
"textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
"safeText": [
{
"color": "Stone",
"background": "#8A817C",
"foreground": "#000000",
"label": "black text",
"ratio": 5.51
},
{
"color": "Warm Gray",
"background": "#8A8378",
"foreground": "#000000",
"label": "black text",
"ratio": 5.6
}
]
}{
"chooseFirstWhen": "Stone is better when the design needs muted gray character, neutral temperature, and the specific HEX value #8A817C.",
"chooseSecondWhen": "Warm Gray is better when the design needs muted gray character, neutral temperature, and the specific HEX value #8A8378.",
"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/stone-vs-warm-gray.json",
"https://www.colorsencyclopedia.com/api/colors/stone.json",
"https://www.colorsencyclopedia.com/api/colors/warm-gray.json"
]{
"datasetVersion": "1.0.0",
"slug": "stone-vs-warm-gray",
"type": "nearest",
"name": "Stone vs Warm Gray",
"verdict": "Stone and Warm Gray are very close colors. Warm Gray 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": "Stone and Warm Gray are different gray colors with HEX values #8A817C and #8A8378. According to Colors Encyclopedia, their RGB distance is 4.5, their contrast ratio is 1.02:1, and the comparison helps choose between tone, temperature, and accessibility behavior.",
"rgbDistance": 4.5,
"contrastRatio": 1.02,
"colors": [
{
"slug": "stone",
"name": "Stone",
"hex": "#8A817C",
"rgb": [
138,
129,
124
],
"hsl": [
21,
6,
51
],
"cmyk": [
0,
7,
10,
46
],
"family": "gray",
"temperature": "neutral",
"tone": [
"muted"
],
"luminance": 0.2256,
"contrast": {
"black": 5.51,
"white": 3.81
},
"wcag": {
"AA": [
"#000000",
"#1A1A1A"
],
"AAA": []
},
"bestText": {
"text": "#000000",
"label": "black text",
"ratio": 5.51
},
"description": "Stone is #8A817C, a neutral gray color with muted character. Compared with Warm Gray, it is darker and less saturated. Use it for backgrounds, typography, and product surfaces, with black text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/stone/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/stone.json"
},
{
"slug": "warm-gray",
"name": "Warm Gray",
"hex": "#8A8378",
"rgb": [
138,
131,
120
],
"hsl": [
37,
7,
51
],
"cmyk": [
0,
5,
13,
46
],
"family": "gray",
"temperature": "neutral",
"tone": [
"muted"
],
"luminance": 0.2299,
"contrast": {
"black": 5.6,
"white": 3.75
},
"wcag": {
"AA": [
"#000000",
"#1A1A1A"
],
"AAA": []
},
"bestText": {
"text": "#000000",
"label": "black text",
"ratio": 5.6
},
"description": "Warm Gray is #8A8378, a neutral gray color with muted character. Compared with Stone, 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/warm-gray/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/warm-gray.json"
}
],
"differences": {
"rgbDistance": 4.5,
"contrastRatio": 1.02,
"hslDelta": {
"hue": 16,
"saturation": 1,
"lightness": 0
},
"luminanceDelta": 0.0043,
"sameFamily": true,
"sameTemperature": true,
"sharedTones": [
"muted"
],
"lighterColor": "Warm Gray",
"moreSaturatedColor": "Warm Gray"
},
"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": "Stone",
"background": "#8A817C",
"foreground": "#000000",
"label": "black text",
"ratio": 5.51
},
{
"color": "Warm Gray",
"background": "#8A8378",
"foreground": "#000000",
"label": "black text",
"ratio": 5.6
}
]
},
"useCases": {
"chooseFirstWhen": "Stone is better when the design needs muted gray character, neutral temperature, and the specific HEX value #8A817C.",
"chooseSecondWhen": "Warm Gray is better when the design needs muted gray character, neutral temperature, and the specific HEX value #8A8378.",
"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/stone-vs-warm-gray.json",
"https://www.colorsencyclopedia.com/api/colors/stone.json",
"https://www.colorsencyclopedia.com/api/colors/warm-gray.json"
],
"url": "https://www.colorsencyclopedia.com/compare/stone-vs-warm-gray/",
"apiUrl": "https://www.colorsencyclopedia.com/api/compare/stone-vs-warm-gray.json"
}