Nearest-color comparison
Persian Blue #1C39BB vs Sapphire #0F52BA: RGB distance 28.2 and contrast 1.25:1. Compare hue, luminance, saturation, WCAG and practical use.
Persian Blue and Sapphire are related but distinguishable, with an RGB distance of 28.2. Sapphire is lighter by 0.0292, and Sapphire is more saturated by 11 percentage points. Their mutual contrast is 1.25:1. The pair is too close for a readable foreground/background combination and works better as neighboring palette colors.
The main measurable differences between Persian Blue and Sapphire across RGB distance, luminance, hue, saturation, and contrast.
blue color
Persian Blue is #1C39BB, a cool blue with hue 229°, saturation 74% and luminance 0.0676. Beside Sapphire, it is darker and less saturated. Of the two standard text choices, white text gives the higher contrast at 8.93:1.
blue color
Sapphire is #0F52BA, a cool blue with hue 216°, saturation 85% and luminance 0.0968. Beside Persian Blue, it is lighter and more saturated. Of the two standard text choices, white text gives the higher contrast at 7.15:1.
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 Persian Blue and Sapphire, 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": "persian-blue",
"name": "Persian Blue",
"hex": "#1C39BB",
"rgb": [
28,
57,
187
],
"hsl": [
229,
74,
42
],
"cmyk": [
85,
70,
0,
27
],
"family": "blue",
"temperature": "cool",
"tone": [
"vibrant",
"jewel-tone"
],
"luminance": 0.0676,
"contrast": {
"black": 2.35,
"white": 8.93
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"bestText": {
"text": "#FFFFFF",
"label": "white text",
"ratio": 8.93
},
"description": "Persian Blue is #1C39BB, a cool blue color with vibrant and jewel tone character. Compared with Sapphire, it is darker and less saturated. Use it for historical references, pigment palettes, and cultural color systems, with white text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/persian-blue/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/persian-blue.json"
},
{
"slug": "sapphire",
"name": "Sapphire",
"hex": "#0F52BA",
"rgb": [
15,
82,
186
],
"hsl": [
216,
85,
39
],
"cmyk": [
92,
56,
0,
27
],
"family": "blue",
"temperature": "cool",
"tone": [
"vibrant",
"jewel-tone"
],
"luminance": 0.0968,
"contrast": {
"black": 2.94,
"white": 7.15
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF"
]
},
"bestText": {
"text": "#FFFFFF",
"label": "white text",
"ratio": 7.15
},
"description": "Sapphire is #0F52BA, a cool blue color with vibrant and jewel tone character. Compared with Persian Blue, it is lighter and more saturated. Use it for interfaces, brand systems, and technical design, with white text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/sapphire/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/sapphire.json"
}
]{
"rgbDistance": 28.2,
"contrastRatio": 1.25,
"hslDelta": {
"hue": 13,
"saturation": 11,
"lightness": 3
},
"luminanceDelta": 0.0292,
"sameFamily": true,
"sameTemperature": true,
"sharedTones": [
"vibrant",
"jewel-tone"
],
"lighterColor": "Sapphire",
"moreSaturatedColor": "Sapphire"
}{
"pairContrastRatio": 1.25,
"textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
"safeText": [
{
"color": "Persian Blue",
"background": "#1C39BB",
"foreground": "#FFFFFF",
"label": "white text",
"ratio": 8.93
},
{
"color": "Sapphire",
"background": "#0F52BA",
"foreground": "#FFFFFF",
"label": "white text",
"ratio": 7.15
}
]
}{
"chooseFirstWhen": "Persian Blue is better when the design needs vibrant and jewel tone blue character, cool temperature, and the specific HEX value #1C39BB.",
"chooseSecondWhen": "Sapphire is better when the design needs vibrant and jewel tone blue character, cool temperature, and the specific HEX value #0F52BA.",
"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/persian-blue-vs-sapphire.json",
"https://www.colorsencyclopedia.com/api/colors/persian-blue.json",
"https://www.colorsencyclopedia.com/api/colors/sapphire.json"
]{
"datasetVersion": "1.0.0",
"slug": "persian-blue-vs-sapphire",
"type": "nearest",
"name": "Persian Blue vs Sapphire",
"verdict": "Persian Blue and Sapphire are visually related colors. Sapphire is the lighter option. They share similar temperature behavior. Their mutual contrast is 1.25:1, so the pair is too low for text and better treated as a palette relationship.",
"summary": "Persian Blue and Sapphire are different blue colors with HEX values #1C39BB and #0F52BA. According to Colors Encyclopedia, their RGB distance is 28.2, their contrast ratio is 1.25:1, and the comparison helps choose between tone, temperature, and accessibility behavior.",
"rgbDistance": 28.2,
"contrastRatio": 1.25,
"colors": [
{
"slug": "persian-blue",
"name": "Persian Blue",
"hex": "#1C39BB",
"rgb": [
28,
57,
187
],
"hsl": [
229,
74,
42
],
"cmyk": [
85,
70,
0,
27
],
"family": "blue",
"temperature": "cool",
"tone": [
"vibrant",
"jewel-tone"
],
"luminance": 0.0676,
"contrast": {
"black": 2.35,
"white": 8.93
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF",
"#F5F5F5"
]
},
"bestText": {
"text": "#FFFFFF",
"label": "white text",
"ratio": 8.93
},
"description": "Persian Blue is #1C39BB, a cool blue color with vibrant and jewel tone character. Compared with Sapphire, it is darker and less saturated. Use it for historical references, pigment palettes, and cultural color systems, with white text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/persian-blue/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/persian-blue.json"
},
{
"slug": "sapphire",
"name": "Sapphire",
"hex": "#0F52BA",
"rgb": [
15,
82,
186
],
"hsl": [
216,
85,
39
],
"cmyk": [
92,
56,
0,
27
],
"family": "blue",
"temperature": "cool",
"tone": [
"vibrant",
"jewel-tone"
],
"luminance": 0.0968,
"contrast": {
"black": 2.94,
"white": 7.15
},
"wcag": {
"AA": [
"#FFFFFF",
"#F5F5F5"
],
"AAA": [
"#FFFFFF"
]
},
"bestText": {
"text": "#FFFFFF",
"label": "white text",
"ratio": 7.15
},
"description": "Sapphire is #0F52BA, a cool blue color with vibrant and jewel tone character. Compared with Persian Blue, it is lighter and more saturated. Use it for interfaces, brand systems, and technical design, with white text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/sapphire/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/sapphire.json"
}
],
"differences": {
"rgbDistance": 28.2,
"contrastRatio": 1.25,
"hslDelta": {
"hue": 13,
"saturation": 11,
"lightness": 3
},
"luminanceDelta": 0.0292,
"sameFamily": true,
"sameTemperature": true,
"sharedTones": [
"vibrant",
"jewel-tone"
],
"lighterColor": "Sapphire",
"moreSaturatedColor": "Sapphire"
},
"accessibility": {
"pairContrastRatio": 1.25,
"textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
"safeText": [
{
"color": "Persian Blue",
"background": "#1C39BB",
"foreground": "#FFFFFF",
"label": "white text",
"ratio": 8.93
},
{
"color": "Sapphire",
"background": "#0F52BA",
"foreground": "#FFFFFF",
"label": "white text",
"ratio": 7.15
}
]
},
"useCases": {
"chooseFirstWhen": "Persian Blue is better when the design needs vibrant and jewel tone blue character, cool temperature, and the specific HEX value #1C39BB.",
"chooseSecondWhen": "Sapphire is better when the design needs vibrant and jewel tone blue character, cool temperature, and the specific HEX value #0F52BA.",
"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/persian-blue-vs-sapphire.json",
"https://www.colorsencyclopedia.com/api/colors/persian-blue.json",
"https://www.colorsencyclopedia.com/api/colors/sapphire.json"
],
"url": "https://www.colorsencyclopedia.com/compare/persian-blue-vs-sapphire/",
"apiUrl": "https://www.colorsencyclopedia.com/api/compare/persian-blue-vs-sapphire.json"
}