Nearest-color comparison
Sienna #A0522D vs Red Clay #B45A3C: RGB distance 26.2 and contrast 1.19:1. Compare hue, luminance, saturation, WCAG and practical use.
Sienna and Red Clay are related but distinguishable, with an RGB distance of 26.2. Red Clay is lighter by 0.0364, and Sienna is more saturated by 6 percentage points. Their mutual contrast is 1.19:1. The pair is too close for a readable foreground/background combination and works better as neighboring palette colors.
The main measurable differences between Sienna and Red Clay across RGB distance, luminance, hue, saturation, and contrast.
orange color
Sienna is #A0522D, a warm orange with hue 19°, saturation 56% and luminance 0.137. Beside Red Clay, it is darker and more saturated. Of the two standard text choices, white text gives the higher contrast at 5.61:1.
orange color
Red Clay is #B45A3C, a warm orange with hue 15°, saturation 50% and luminance 0.1734. Beside Sienna, it is lighter and less saturated. Of the two standard text choices, white text gives the higher contrast at 4.7:1.
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 Sienna and Red Clay, 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": "sienna",
"name": "Sienna",
"hex": "#A0522D",
"rgb": [
160,
82,
45
],
"hsl": [
19,
56,
40
],
"cmyk": [
0,
49,
72,
37
],
"family": "orange",
"temperature": "warm",
"tone": [
"earth-tone"
],
"luminance": 0.137,
"contrast": {
"black": 3.74,
"white": 5.61
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": []
},
"bestText": {
"text": "#FFFFFF",
"label": "white text",
"ratio": 5.61
},
"description": "Sienna is #A0522D, a warm orange color with earth tone character. Compared with Red Clay, it is darker and more saturated. Use it for web design, css color systems, and ui prototyping, with white text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/sienna/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/sienna.json"
},
{
"slug": "red-clay",
"name": "Red Clay",
"hex": "#B45A3C",
"rgb": [
180,
90,
60
],
"hsl": [
15,
50,
47
],
"cmyk": [
0,
50,
67,
29
],
"family": "orange",
"temperature": "warm",
"tone": [
"earth-tone"
],
"luminance": 0.1734,
"contrast": {
"black": 4.47,
"white": 4.7
},
"wcag": {
"AA": [
"#FFFFFF"
],
"AAA": []
},
"bestText": {
"text": "#FFFFFF",
"label": "white text",
"ratio": 4.7
},
"description": "Red Clay is #B45A3C, a warm orange color with earth tone character. Compared with Sienna, it is lighter and less saturated. Use it for earth-tone palettes, interior design, and material-inspired branding, with white text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/red-clay/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/red-clay.json"
}
]{
"rgbDistance": 26.2,
"contrastRatio": 1.19,
"hslDelta": {
"hue": 4,
"saturation": 6,
"lightness": 7
},
"luminanceDelta": 0.0364,
"sameFamily": true,
"sameTemperature": true,
"sharedTones": [
"earth-tone"
],
"lighterColor": "Red Clay",
"moreSaturatedColor": "Sienna"
}{
"pairContrastRatio": 1.19,
"textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
"safeText": [
{
"color": "Sienna",
"background": "#A0522D",
"foreground": "#FFFFFF",
"label": "white text",
"ratio": 5.61
},
{
"color": "Red Clay",
"background": "#B45A3C",
"foreground": "#FFFFFF",
"label": "white text",
"ratio": 4.7
}
]
}{
"chooseFirstWhen": "Sienna is better when the design needs earth tone orange character, warm temperature, and the specific HEX value #A0522D.",
"chooseSecondWhen": "Red Clay is better when the design needs earth tone orange character, warm temperature, and the specific HEX value #B45A3C.",
"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/sienna-vs-red-clay.json",
"https://www.colorsencyclopedia.com/api/colors/sienna.json",
"https://www.colorsencyclopedia.com/api/colors/red-clay.json"
]{
"datasetVersion": "1.0.0",
"slug": "sienna-vs-red-clay",
"type": "nearest",
"name": "Sienna vs Red Clay",
"verdict": "Sienna and Red Clay are visually related colors. Red Clay is the lighter option. They share similar temperature behavior. Their mutual contrast is 1.19:1, so the pair is too low for text and better treated as a palette relationship.",
"summary": "Sienna and Red Clay are different orange colors with HEX values #A0522D and #B45A3C. According to Colors Encyclopedia, their RGB distance is 26.2, their contrast ratio is 1.19:1, and the comparison helps choose between tone, temperature, and accessibility behavior.",
"rgbDistance": 26.2,
"contrastRatio": 1.19,
"colors": [
{
"slug": "sienna",
"name": "Sienna",
"hex": "#A0522D",
"rgb": [
160,
82,
45
],
"hsl": [
19,
56,
40
],
"cmyk": [
0,
49,
72,
37
],
"family": "orange",
"temperature": "warm",
"tone": [
"earth-tone"
],
"luminance": 0.137,
"contrast": {
"black": 3.74,
"white": 5.61
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": []
},
"bestText": {
"text": "#FFFFFF",
"label": "white text",
"ratio": 5.61
},
"description": "Sienna is #A0522D, a warm orange color with earth tone character. Compared with Red Clay, it is darker and more saturated. Use it for web design, css color systems, and ui prototyping, with white text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/sienna/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/sienna.json"
},
{
"slug": "red-clay",
"name": "Red Clay",
"hex": "#B45A3C",
"rgb": [
180,
90,
60
],
"hsl": [
15,
50,
47
],
"cmyk": [
0,
50,
67,
29
],
"family": "orange",
"temperature": "warm",
"tone": [
"earth-tone"
],
"luminance": 0.1734,
"contrast": {
"black": 4.47,
"white": 4.7
},
"wcag": {
"AA": [
"#FFFFFF"
],
"AAA": []
},
"bestText": {
"text": "#FFFFFF",
"label": "white text",
"ratio": 4.7
},
"description": "Red Clay is #B45A3C, a warm orange color with earth tone character. Compared with Sienna, it is lighter and less saturated. Use it for earth-tone palettes, interior design, and material-inspired branding, with white text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/red-clay/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/red-clay.json"
}
],
"differences": {
"rgbDistance": 26.2,
"contrastRatio": 1.19,
"hslDelta": {
"hue": 4,
"saturation": 6,
"lightness": 7
},
"luminanceDelta": 0.0364,
"sameFamily": true,
"sameTemperature": true,
"sharedTones": [
"earth-tone"
],
"lighterColor": "Red Clay",
"moreSaturatedColor": "Sienna"
},
"accessibility": {
"pairContrastRatio": 1.19,
"textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
"safeText": [
{
"color": "Sienna",
"background": "#A0522D",
"foreground": "#FFFFFF",
"label": "white text",
"ratio": 5.61
},
{
"color": "Red Clay",
"background": "#B45A3C",
"foreground": "#FFFFFF",
"label": "white text",
"ratio": 4.7
}
]
},
"useCases": {
"chooseFirstWhen": "Sienna is better when the design needs earth tone orange character, warm temperature, and the specific HEX value #A0522D.",
"chooseSecondWhen": "Red Clay is better when the design needs earth tone orange character, warm temperature, and the specific HEX value #B45A3C.",
"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/sienna-vs-red-clay.json",
"https://www.colorsencyclopedia.com/api/colors/sienna.json",
"https://www.colorsencyclopedia.com/api/colors/red-clay.json"
],
"url": "https://www.colorsencyclopedia.com/compare/sienna-vs-red-clay/",
"apiUrl": "https://www.colorsencyclopedia.com/api/compare/sienna-vs-red-clay.json"
}