Colors Encyclopedia

Named color

Tanzanite

Tanzanite color #4D5DAB: RGB 77, 93, 171 and HSL 230°, 38%, 49%. Explore its cool blue profile, contrast, CSS, palettes and harmonies.

#4D5DAB blue cool balanced
HEX #4D5DAB
RGB rgb(77, 93, 171)
HSL hsl(230 38% 49%)
CMYK cmyk(55, 46, 0, 33)
Luminance 0.1235
Contrast Black 3.47:1White 6.05:1

Use this color

Create with Tanzanite

Open a professional color tool with #4D5DAB 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 Tanzanite 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-tanzanite: #4D5DAB;
.bg-tanzanite { background-color: #4D5DAB; }
.text-tanzanite { color: #4D5DAB; }
Open CSS utility pageReusable variables, classes, examples, and implementation notes

Color history, meaning and use · Editorially reviewed

About Tanzanite Color

Tanzanite is the blue-to-violet variety of zoisite named for Tanzania, its only commercial source. Identified in the late 1960s, it is pleochroic: a crystal can show different colors with viewing direction. Heat treatment commonly reduces brownish or yellow-green components and emphasizes blue and violet.

The digital color sits between blue and purple, making it useful when a palette needs cool depth without reading as conventional navy. Violet companions emphasize its purple side, while cyan and cool gray pull it toward blue. A flat swatch cannot reproduce directional color, red flashes, transparency, size, cut, or illumination effects.

This HEX value is a screen convention, not a gem identification, treatment disclosure, source guarantee, or value assessment.

WCAG Accessibility

Contrast checks for Tanzanite against black and white text.

Black text3.47:1AA Fail
White text6.05:1AA Pass
AA text options#FFFFFF, #F5F5F5
AAA text optionsNone in seed set
Open WCAG pageDetailed contrast notes, warnings, alternatives, and UI examples

Downloadable color reference infographic

Tanzanite Color Reference Infographic

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

1200 × 800
Tanzanite color reference infographic showing #4D5DAB, RGB and HSL values, a coordinated palette, and black and white text contrast.
Tanzanite color reference infographic generated from the verified Colors Encyclopedia dataset.
Download WebPDownload SVGOpen full size

Color Harmonies

#AC9D4D#AC9D4D#4D8DAC#4D8DAC#6D4DAC#6D4DAC#AC4D5D#AC4D5D#5DAC4D#5DAC4D
Open full Tanzanite harmony pageComplementary, analogous, triadic, tetradic, split, and monochromatic sets

Variants

#8B96CB#8B96CB#313B6D#313B6D#324BC8#324BC8#697091#697091#ADB3CC#ADB3CC#2448FF#2448FF

Pairings

White#FFFFFF#AC9D4D#AC9D4D#4D8DAC#4D8DAC#6D4DAC#6D4DACMatte 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
Luminance0.1235
Black text3.47:1AA Fail
White text6.05:1AA 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": "#4D5DAB",
  "rgb": [
    77,
    93,
    171
  ],
  "hsl": [
    230,
    38,
    49
  ],
  "cmyk": [
    55,
    46,
    0,
    33
  ],
  "luminance": 0.1235,
  "contrast": {
    "black": 3.47,
    "white": 6.05
  }
}
WCAG
{
  "AA": [
    "#FFFFFF",
    "#F5F5F5"
  ],
  "AAA": []
}
Harmonies
{
  "complementary": "#AC9D4D",
  "analogous": [
    "#4D8DAC",
    "#6D4DAC"
  ],
  "triadic": [
    "#AC4D5D",
    "#5DAC4D"
  ],
  "tetradic": [
    "#AC4D8D",
    "#AC9D4D",
    "#4DAC6D"
  ],
  "splitComplementary": [
    "#AC6D4D",
    "#8DAC4D"
  ],
  "monochromatic": [
    "#8B96CB",
    "#4D5DAB",
    "#313B6D"
  ]
}
Variants
{
  "light": "#8B96CB",
  "dark": "#313B6D",
  "saturated": "#324BC8",
  "desaturated": "#697091",
  "pastel": "#ADB3CC",
  "neon": "#2448FF"
}
Pairings
{
  "best": [
    "#FFFFFF",
    "#AC9D4D",
    "#4D8DAC",
    "#6D4DAC"
  ],
  "avoid": [
    "#697091",
    "#8B96CB"
  ],
  "neutral": [
    "#1A1A1A",
    "#F5F5F5",
    "#E8E8E4"
  ],
  "highContrast": [
    "#FFFFFF"
  ],
  "lowContrast": [
    "#8B96CB",
    "#697091"
  ]
}
Knowledge graph
{
  "nearestColors": [
    "violet-blue",
    "iolite",
    "steel-blue",
    "iris",
    "amethyst-deep"
  ],
  "generatedPalettes": [
    "tanzanite"
  ],
  "generatedComparisons": [
    "steel-blue-vs-tanzanite",
    "tanzanite-vs-iolite",
    "tanzanite-vs-violet-blue"
  ],
  "relatedFamilies": [
    "/colors/by-family/blue",
    "/colors/by-temperature/cool",
    "/colors/by-tone/balanced"
  ],
  "relatedTools": [
    "/harmonies/tanzanite",
    "/wcag/tanzanite",
    "/css/colors/tanzanite",
    "/hex/4d5dab",
    "/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/balanced"
    ],
    "narrower": [
      "/palettes/tanzanite"
    ],
    "related": [
      "/colors/violet-blue",
      "/colors/iolite",
      "/colors/steel-blue",
      "/colors/iris",
      "/colors/amethyst-deep",
      "/compare/steel-blue-vs-tanzanite",
      "/compare/tanzanite-vs-iolite",
      "/compare/tanzanite-vs-violet-blue",
      "/harmonies/tanzanite",
      "/wcag/tanzanite",
      "/css/colors/tanzanite",
      "/hex/4d5dab",
      "/tools/css-gradient-generator",
      "/tools/color-palette-generator",
      "/tools/css-color-mixer",
      "/tools/contrast-checker"
    ]
  }
}
Full JSON dataset 
{
  "slug": "tanzanite",
  "name": "Tanzanite",
  "hex": "#4D5DAB",
  "uses": [
    "jewel-tone palettes",
    "luxury branding",
    "premium interface accents"
  ],
  "psychology": {
    "associations": [
      "depth",
      "richness",
      "prestige"
    ],
    "contexts": [
      "luxury",
      "fashion",
      "beauty",
      "editorial design"
    ],
    "avoidIn": [
      "minimal compliance dashboards"
    ]
  },
  "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": [
    "balanced"
  ],
  "editorialNotes": "Curated internal color record with computed technical properties.",
  "tags": [
    "blue",
    "cool",
    "balanced",
    "jewel-tone-palettes",
    "luxury-branding",
    "premium-interface-accents",
    "depth",
    "richness",
    "prestige"
  ],
  "popularity": 80,
  "rgb": [
    77,
    93,
    171
  ],
  "hsl": [
    230,
    38,
    49
  ],
  "cmyk": [
    55,
    46,
    0,
    33
  ],
  "luminance": 0.1235,
  "contrast": {
    "black": 3.47,
    "white": 6.05
  },
  "harmonies": {
    "complementary": "#AC9D4D",
    "analogous": [
      "#4D8DAC",
      "#6D4DAC"
    ],
    "triadic": [
      "#AC4D5D",
      "#5DAC4D"
    ],
    "tetradic": [
      "#AC4D8D",
      "#AC9D4D",
      "#4DAC6D"
    ],
    "splitComplementary": [
      "#AC6D4D",
      "#8DAC4D"
    ],
    "monochromatic": [
      "#8B96CB",
      "#4D5DAB",
      "#313B6D"
    ]
  },
  "variants": {
    "light": "#8B96CB",
    "dark": "#313B6D",
    "saturated": "#324BC8",
    "desaturated": "#697091",
    "pastel": "#ADB3CC",
    "neon": "#2448FF"
  },
  "wcag": {
    "AA": [
      "#FFFFFF",
      "#F5F5F5"
    ],
    "AAA": []
  },
  "css": {
    "variable": "--color-tanzanite: #4D5DAB;",
    "utility": ".bg-tanzanite { background-color: #4D5DAB; }",
    "textUtility": ".text-tanzanite { color: #4D5DAB; }"
  },
  "nearestColors": [
    "violet-blue",
    "iolite",
    "steel-blue",
    "iris",
    "amethyst-deep"
  ],
  "generatedPalettes": [
    "tanzanite"
  ],
  "generatedComparisons": [
    "steel-blue-vs-tanzanite",
    "tanzanite-vs-iolite",
    "tanzanite-vs-violet-blue"
  ],
  "relatedFamilies": [
    "/colors/by-family/blue",
    "/colors/by-temperature/cool",
    "/colors/by-tone/balanced"
  ],
  "relatedTools": [
    "/harmonies/tanzanite",
    "/wcag/tanzanite",
    "/css/colors/tanzanite",
    "/hex/4d5dab",
    "/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/balanced"
    ],
    "narrower": [
      "/palettes/tanzanite"
    ],
    "related": [
      "/colors/violet-blue",
      "/colors/iolite",
      "/colors/steel-blue",
      "/colors/iris",
      "/colors/amethyst-deep",
      "/compare/steel-blue-vs-tanzanite",
      "/compare/tanzanite-vs-iolite",
      "/compare/tanzanite-vs-violet-blue",
      "/harmonies/tanzanite",
      "/wcag/tanzanite",
      "/css/colors/tanzanite",
      "/hex/4d5dab",
      "/tools/css-gradient-generator",
      "/tools/color-palette-generator",
      "/tools/css-color-mixer",
      "/tools/contrast-checker"
    ]
  },
  "pairings": {
    "best": [
      "#FFFFFF",
      "#AC9D4D",
      "#4D8DAC",
      "#6D4DAC"
    ],
    "avoid": [
      "#697091",
      "#8B96CB"
    ],
    "neutral": [
      "#1A1A1A",
      "#F5F5F5",
      "#E8E8E4"
    ],
    "highContrast": [
      "#FFFFFF"
    ],
    "lowContrast": [
      "#8B96CB",
      "#697091"
    ]
  }
}
Dataset manifest Version 1.0.0 Build hash published in manifest Canonical page

Similar Colors

Violet Blue#324AB2
Iolite#5A4C8D
Steel Blue#4682B4
Iris#5A4FCF
Amethyst Deep#5D3A9B

Related Color Guides

Blue color familyBrowse named blue colors and compare nearby swatches.Cool colorsExplore colors with cool temperature behavior.Balanced colorsFind colors with balanced visual character.Tanzanite accessibilityCheck contrast and WCAG text options for #4D5DAB.Tanzanite CSS utilitiesUse Tanzanite in CSS variables and utility classes.#4D5DAB HEX atlasOpen the permanent HEX atlas record for conversions and variants.Tanzanite paletteOpen the generated palette based on Tanzanite.Tanzanite harmoniesExplore complementary, analogous, triadic, and tetradic harmonies.