Colors Encyclopedia

Named color

Persian Blue

Persian Blue color #1C39BB: RGB 28, 57, 187 and HSL 229°, 74%, 42%. Explore its cool blue profile, contrast, CSS, palettes and harmonies.

#1C39BB blue cool vibrantjewel-tone
HEX #1C39BB
RGB rgb(28, 57, 187)
HSL hsl(229 74% 42%)
CMYK cmyk(85, 70, 0, 27)
Luminance 0.0676
Contrast Black 2.35:1White 8.93:1

Use this color

Create with Persian Blue

Open a professional color tool with #1C39BB already applied. Each configuration stays canonical to the tool and can be adjusted or shared.

All color tools
Generate palette & CSS variablesCreate 50–950 tokens and export CSS, SCSS, JSON, or Tailwind.Open configured tool →Open in Gradient StudioStart with Persian Blue and its complementary color.Open configured tool →Mix this colorBlend it with a complementary color and copy color-mix() CSS.Open configured tool →Check contrastOpen the strongest black or white background pairing.Open configured tool →Accessible combinationsReview AA and AAA text options, alternatives, warnings, and UI guidance.Open configured tool →Create glass surfaceUse this color as the tint for a translucent UI panel.Open configured tool →

CSS Utilities

--color-persian-blue: #1C39BB;
.bg-persian-blue { background-color: #1C39BB; }
.text-persian-blue { color: #1C39BB; }
Open CSS utility pageReusable variables, classes, examples, and implementation notes

Color meaning and use

About Persian Blue Color

Persian Blue uses HEX #1C39BB, RGB 28, 57, 187, and HSL 229°, 74%, 42%. The dataset classifies it in the blue family with cool temperature and vibrant and jewel tone visual character.

No separate named-color neighbor is recorded for this entry. Its relative luminance is 0.0676; black contrast is 2.35:1 and white contrast is 8.93:1, making white the stronger of those two standard foreground choices.

WCAG Accessibility

Contrast checks for Persian Blue against black and white text.

Black text2.35:1AA Fail
White text8.93:1AA Pass
AA text options#FFFFFF, #F5F5F5
AAA text options#FFFFFF, #F5F5F5
Open WCAG pageDetailed contrast notes, warnings, alternatives, and UI examples

Downloadable color reference infographic

Persian Blue Color Reference Infographic

Save a high-resolution infographic of Persian Blue, including its color values, coordinated palette, and black and white text contrast.

1200 × 800
Persian Blue color reference infographic showing #1C39BB, RGB and HSL values, a coordinated palette, and black and white text contrast.
Persian Blue color reference infographic generated from the verified Colors Encyclopedia dataset.
Download WebPDownload SVGOpen full size

Color Harmonies

#BA9D1C#BA9D1C#1C88BA#1C88BA#4E1CBA#4E1CBA#BA1C39#BA1C39#39BA1C#39BA1C
Open full Persian Blue harmony pageComplementary, analogous, triadic, tetradic, split, and monochromatic sets

Variants

#4E69E4#4E69E4#10216A#10216A#042AD2#042AD2#3348A3#3348A3#798BDC#798BDC#002FFF#002FFF

Pairings

White#FFFFFF#BA9D1C#BA9D1C#1C88BA#1C88BA#4E1CBA#4E1CBAMatte Black#1A1A1AWhite Smoke#F5F5F5

Machine-readable data

Machine-Readable Color Data (JSON)

Perfect for CSS, design systems, automation, and AI ingestion.

AI-Ready Dataset v1.0.0
Luminance0.0676
Black text2.35:1AA Fail
White text8.93:1AA Pass
hexCanonical HEX value
rgbRed, green, blue channels
hslHue, saturation, lightness
cmykApproximate print conversion
wcagAA and AAA contrast options
harmoniesMathematical harmony sets
variantsGenerated tone variants
nearestColorsKnowledge graph neighbors
Download JSON Open API
Structured sections
Color systems
{
  "hex": "#1C39BB",
  "rgb": [
    28,
    57,
    187
  ],
  "hsl": [
    229,
    74,
    42
  ],
  "cmyk": [
    85,
    70,
    0,
    27
  ],
  "luminance": 0.0676,
  "contrast": {
    "black": 2.35,
    "white": 8.93
  }
}
WCAG
{
  "AA": [
    "#FFFFFF",
    "#F5F5F5"
  ],
  "AAA": [
    "#FFFFFF",
    "#F5F5F5"
  ]
}
Harmonies
{
  "complementary": "#BA9D1C",
  "analogous": [
    "#1C88BA",
    "#4E1CBA"
  ],
  "triadic": [
    "#BA1C39",
    "#39BA1C"
  ],
  "tetradic": [
    "#BA1C88",
    "#BA9D1C",
    "#1CBA4E"
  ],
  "splitComplementary": [
    "#BA4E1C",
    "#88BA1C"
  ],
  "monochromatic": [
    "#4E69E4",
    "#1C39BB",
    "#10216A"
  ]
}
Variants
{
  "light": "#4E69E4",
  "dark": "#10216A",
  "saturated": "#042AD2",
  "desaturated": "#3348A3",
  "pastel": "#798BDC",
  "neon": "#002FFF"
}
Pairings
{
  "best": [
    "#FFFFFF",
    "#BA9D1C",
    "#1C88BA",
    "#4E1CBA"
  ],
  "avoid": [
    "#3348A3",
    "#4E69E4"
  ],
  "neutral": [
    "#1A1A1A",
    "#F5F5F5",
    "#E8E8E4"
  ],
  "highContrast": [
    "#FFFFFF"
  ],
  "lowContrast": [
    "#4E69E4",
    "#3348A3"
  ]
}
Knowledge graph
{
  "nearestColors": [
    "egyptian-blue",
    "sapphire",
    "violet-blue",
    "cobalt-blue",
    "denim"
  ],
  "generatedPalettes": [
    "persian-blue"
  ],
  "generatedComparisons": [
    "egyptian-blue-vs-persian-blue",
    "persian-blue-vs-sapphire",
    "violet-blue-vs-persian-blue"
  ],
  "relatedFamilies": [
    "/colors/by-family/blue",
    "/colors/by-temperature/cool",
    "/colors/by-tone/vibrant",
    "/colors/by-tone/jewel-tone"
  ],
  "relatedTools": [
    "/harmonies/persian-blue",
    "/wcag/persian-blue",
    "/css/colors/persian-blue",
    "/hex/1c39bb",
    "/tools/css-gradient-generator",
    "/tools/color-palette-generator",
    "/tools/css-color-mixer",
    "/tools/contrast-checker"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/blue",
      "/colors/by-temperature/cool",
      "/colors/by-tone/vibrant",
      "/colors/by-tone/jewel-tone"
    ],
    "narrower": [
      "/palettes/persian-blue"
    ],
    "related": [
      "/colors/egyptian-blue",
      "/colors/sapphire",
      "/colors/violet-blue",
      "/colors/cobalt-blue",
      "/colors/denim",
      "/compare/egyptian-blue-vs-persian-blue",
      "/compare/persian-blue-vs-sapphire",
      "/compare/violet-blue-vs-persian-blue",
      "/harmonies/persian-blue",
      "/wcag/persian-blue",
      "/css/colors/persian-blue",
      "/hex/1c39bb",
      "/tools/css-gradient-generator",
      "/tools/color-palette-generator",
      "/tools/css-color-mixer",
      "/tools/contrast-checker"
    ]
  }
}
Full JSON dataset 
{
  "slug": "persian-blue",
  "name": "Persian Blue",
  "hex": "#1C39BB",
  "uses": [
    "historical references",
    "pigment palettes",
    "cultural color systems"
  ],
  "psychology": {
    "associations": [
      "heritage",
      "craft",
      "specificity"
    ],
    "contexts": [
      "museum design",
      "education",
      "editorial research",
      "cultural references"
    ],
    "avoidIn": [
      "generic unlabeled palette systems"
    ]
  },
  "aliases": [],
  "sourceType": "curated",
  "confidence": "medium",
  "reviewStatus": "manual",
  "sourceUrl": "https://www.colorsencyclopedia.com/assets/colors.json",
  "origin": {
    "type": "common",
    "notes": "Curated common color reference used in design, material, cultural, and editorial color systems."
  },
  "family": "blue",
  "temperature": "cool",
  "tone": [
    "vibrant",
    "jewel-tone"
  ],
  "editorialNotes": "Curated internal color record with computed technical properties.",
  "tags": [
    "blue",
    "cool",
    "vibrant",
    "jewel-tone",
    "historical-references",
    "pigment-palettes",
    "cultural-color-systems",
    "heritage",
    "craft",
    "specificity"
  ],
  "popularity": 84,
  "rgb": [
    28,
    57,
    187
  ],
  "hsl": [
    229,
    74,
    42
  ],
  "cmyk": [
    85,
    70,
    0,
    27
  ],
  "luminance": 0.0676,
  "contrast": {
    "black": 2.35,
    "white": 8.93
  },
  "harmonies": {
    "complementary": "#BA9D1C",
    "analogous": [
      "#1C88BA",
      "#4E1CBA"
    ],
    "triadic": [
      "#BA1C39",
      "#39BA1C"
    ],
    "tetradic": [
      "#BA1C88",
      "#BA9D1C",
      "#1CBA4E"
    ],
    "splitComplementary": [
      "#BA4E1C",
      "#88BA1C"
    ],
    "monochromatic": [
      "#4E69E4",
      "#1C39BB",
      "#10216A"
    ]
  },
  "variants": {
    "light": "#4E69E4",
    "dark": "#10216A",
    "saturated": "#042AD2",
    "desaturated": "#3348A3",
    "pastel": "#798BDC",
    "neon": "#002FFF"
  },
  "wcag": {
    "AA": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "AAA": [
      "#FFFFFF",
      "#F5F5F5"
    ]
  },
  "css": {
    "variable": "--color-persian-blue: #1C39BB;",
    "utility": ".bg-persian-blue { background-color: #1C39BB; }",
    "textUtility": ".text-persian-blue { color: #1C39BB; }"
  },
  "nearestColors": [
    "egyptian-blue",
    "sapphire",
    "violet-blue",
    "cobalt-blue",
    "denim"
  ],
  "generatedPalettes": [
    "persian-blue"
  ],
  "generatedComparisons": [
    "egyptian-blue-vs-persian-blue",
    "persian-blue-vs-sapphire",
    "violet-blue-vs-persian-blue"
  ],
  "relatedFamilies": [
    "/colors/by-family/blue",
    "/colors/by-temperature/cool",
    "/colors/by-tone/vibrant",
    "/colors/by-tone/jewel-tone"
  ],
  "relatedTools": [
    "/harmonies/persian-blue",
    "/wcag/persian-blue",
    "/css/colors/persian-blue",
    "/hex/1c39bb",
    "/tools/css-gradient-generator",
    "/tools/color-palette-generator",
    "/tools/css-color-mixer",
    "/tools/contrast-checker"
  ],
  "semanticRelations": {
    "broader": [
      "/colors/by-family/blue",
      "/colors/by-temperature/cool",
      "/colors/by-tone/vibrant",
      "/colors/by-tone/jewel-tone"
    ],
    "narrower": [
      "/palettes/persian-blue"
    ],
    "related": [
      "/colors/egyptian-blue",
      "/colors/sapphire",
      "/colors/violet-blue",
      "/colors/cobalt-blue",
      "/colors/denim",
      "/compare/egyptian-blue-vs-persian-blue",
      "/compare/persian-blue-vs-sapphire",
      "/compare/violet-blue-vs-persian-blue",
      "/harmonies/persian-blue",
      "/wcag/persian-blue",
      "/css/colors/persian-blue",
      "/hex/1c39bb",
      "/tools/css-gradient-generator",
      "/tools/color-palette-generator",
      "/tools/css-color-mixer",
      "/tools/contrast-checker"
    ]
  },
  "pairings": {
    "best": [
      "#FFFFFF",
      "#BA9D1C",
      "#1C88BA",
      "#4E1CBA"
    ],
    "avoid": [
      "#3348A3",
      "#4E69E4"
    ],
    "neutral": [
      "#1A1A1A",
      "#F5F5F5",
      "#E8E8E4"
    ],
    "highContrast": [
      "#FFFFFF"
    ],
    "lowContrast": [
      "#4E69E4",
      "#3348A3"
    ]
  }
}
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

Similar Colors

Egyptian Blue#1034A6
Sapphire#0F52BA
Violet Blue#324AB2
Cobalt Blue#0047AB
Denim#1560BD

Related Color Guides

Blue color familyBrowse named blue colors and compare nearby swatches.Cool colorsExplore colors with cool temperature behavior.Vibrant colorsFind colors with vibrant visual character.Jewel Tone colorsFind colors with jewel tone visual character.Persian Blue accessibilityCheck contrast and WCAG text options for #1C39BB.Persian Blue CSS utilitiesUse Persian Blue in CSS variables and utility classes.#1C39BB HEX atlasOpen the permanent HEX atlas record for conversions and variants.Persian Blue paletteOpen the generated palette based on Persian Blue.Persian Blue harmoniesExplore complementary, analogous, triadic, and tetradic harmonies.