Nearest-color comparison

Royal Purple vs Amethyst Deep

Royal Purple and Amethyst Deep are different purple colors with HEX values #7851A9 and #5D3A9B. According to Colors Encyclopedia, their RGB distance is 38.1, their contrast ratio is 1.39:1, and the comparison helps choose between tone, temperature, and accessibility behavior.

Royal Purple and Amethyst Deep are visually related colors. Royal Purple is the lighter option. They share similar temperature behavior. Their mutual contrast is 1.39:1, so the pair is too low for text and better treated as a palette relationship.

Differences Use cases Accessibility JSON

Royal Purple#7851A9

Amethyst Deep#5D3A9B

Quick Difference Summary

The main measurable differences between Royal Purple and Amethyst Deep across RGB distance, luminance, hue, saturation, and contrast.

RGB distance38.1

Pair contrast1.39:1

Luminance delta0.0502

Hue delta5 deg

Lighter colorRoyal Purple

More saturatedAmethyst Deep

Side-by-Side Color Profiles

purple color

Royal Purple

Royal Purple is #7851A9, a cool purple color with balanced character. Compared with Amethyst Deep, it is lighter and less saturated. Use it for beauty branding, creative systems, and premium accents, with white text as the safer foreground option.

HEX#7851A9 RGB120, 81, 169 HSL267, 35, 49 CMYK29, 52, 0, 34 Luminance0.1274 Best textwhite text

Color page WCAG HEX atlas

purple color

Amethyst Deep

Amethyst Deep is #5D3A9B, a cool purple color with jewel tone character. Compared with Royal Purple, it is darker and more saturated. Use it for jewel-tone palettes, luxury branding, and premium interface accents, with white text as the safer foreground option.

HEX#5D3A9B RGB93, 58, 155 HSL262, 46, 42 CMYK40, 63, 0, 39 Luminance0.0772 Best textwhite text

Color page WCAG HEX atlas

When to Use Royal Purple or Amethyst Deep

Choose Royal PurpleRoyal Purple is better when the design needs balanced purple character, cool temperature, and the specific HEX value #7851A9.

Choose Amethyst DeepAmethyst Deep is better when the design needs jewel tone purple character, cool temperature, and the specific HEX value #5D3A9B.

Use togetherUse these colors together as related palette neighbors, subtle material differences, or tonal alternatives rather than readable foreground/background pairs.

Technical Comparison Table

PropertyRoyal PurpleAmethyst Deep

HEX#7851A9#5D3A9B

RGB120, 81, 16993, 58, 155

HSL267, 35, 49262, 46, 42

CMYK29, 52, 0, 3440, 63, 0, 39

FamilyPurplePurple

TemperatureCoolCool

ToneBalancedJewel Tone

Luminance0.12740.0772

Black contrast3.55:12.54:1

White contrast5.92:18.25:1

Shared tonesNone

Accessibility and Contrast

Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.

Royal Purplewhite text - 5.92:1

Amethyst Deepwhite text - 8.25:1

Related Palette Strip

A compact visual strip showing the two compared colors with nearby harmony and variant context.

Royal Purple#7851A9

Amethyst Deep#5D3A9B

#A88DC8#A88DC8

#8C6AC8#8C6AC8

#81A951#81A951

#789C3A#789C3A

colorsBoth named color records with HEX, RGB, HSL, CMYK, luminance, WCAG, and links

differencesRGB distance, HSL deltas, luminance delta, contrast, and shared attributes

accessibilityPair contrast and safer text choices for each color

useCasesWhen to choose each color and when to use them together

relatedApiMachine-readable comparison and color endpoints

Structured sections

Colors

[
  {
    "slug": "royal-purple",
    "name": "Royal Purple",
    "hex": "#7851A9",
    "rgb": [
      120,
      81,
      169
    ],
    "hsl": [
      267,
      35,
      49
    ],
    "cmyk": [
      29,
      52,
      0,
      34
    ],
    "family": "purple",
    "temperature": "cool",
    "tone": [
      "balanced"
    ],
    "luminance": 0.1274,
    "contrast": {
      "black": 3.55,
      "white": 5.92
    },
    "wcag": {
      "AA": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "AAA": []
    },
    "bestText": {
      "text": "#FFFFFF",
      "label": "white text",
      "ratio": 5.92
    },
    "description": "Royal Purple is #7851A9, a cool purple color with balanced character. Compared with Amethyst Deep, it is lighter and less saturated. Use it for beauty branding, creative systems, and premium accents, with white text as the safer foreground option.",
    "url": "https://www.colorsencyclopedia.com/colors/royal-purple/",
    "apiUrl": "https://www.colorsencyclopedia.com/api/colors/royal-purple.json"
  },
  {
    "slug": "amethyst-deep",
    "name": "Amethyst Deep",
    "hex": "#5D3A9B",
    "rgb": [
      93,
      58,
      155
    ],
    "hsl": [
      262,
      46,
      42
    ],
    "cmyk": [
      40,
      63,
      0,
      39
    ],
    "family": "purple",
    "temperature": "cool",
    "tone": [
      "jewel-tone"
    ],
    "luminance": 0.0772,
    "contrast": {
      "black": 2.54,
      "white": 8.25
    },
    "wcag": {
      "AA": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "AAA": [
        "#FFFFFF",
        "#F5F5F5"
      ]
    },
    "bestText": {
      "text": "#FFFFFF",
      "label": "white text",
      "ratio": 8.25
    },
    "description": "Amethyst Deep is #5D3A9B, a cool purple color with jewel tone character. Compared with Royal Purple, it is darker and more saturated. Use it for jewel-tone palettes, luxury branding, and premium interface accents, with white text as the safer foreground option.",
    "url": "https://www.colorsencyclopedia.com/colors/amethyst-deep/",
    "apiUrl": "https://www.colorsencyclopedia.com/api/colors/amethyst-deep.json"
  }
]

Differences

{
  "rgbDistance": 38.1,
  "contrastRatio": 1.39,
  "hslDelta": {
    "hue": 5,
    "saturation": 11,
    "lightness": 7
  },
  "luminanceDelta": 0.0502,
  "sameFamily": true,
  "sameTemperature": true,
  "sharedTones": [],
  "lighterColor": "Royal Purple",
  "moreSaturatedColor": "Amethyst Deep"
}

Accessibility

{
  "pairContrastRatio": 1.39,
  "textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
  "safeText": [
    {
      "color": "Royal Purple",
      "background": "#7851A9",
      "foreground": "#FFFFFF",
      "label": "white text",
      "ratio": 5.92
    },
    {
      "color": "Amethyst Deep",
      "background": "#5D3A9B",
      "foreground": "#FFFFFF",
      "label": "white text",
      "ratio": 8.25
    }
  ]
}

Use cases

{
  "chooseFirstWhen": "Royal Purple is better when the design needs balanced purple character, cool temperature, and the specific HEX value #7851A9.",
  "chooseSecondWhen": "Amethyst Deep is better when the design needs jewel tone purple character, cool temperature, and the specific HEX value #5D3A9B.",
  "useTogetherWhen": "Use these colors together as related palette neighbors, subtle material differences, or tonal alternatives rather than readable foreground/background pairs."
}

Related API

[
  "https://www.colorsencyclopedia.com/api/compare/royal-purple-vs-amethyst-deep.json",
  "https://www.colorsencyclopedia.com/api/colors/royal-purple.json",
  "https://www.colorsencyclopedia.com/api/colors/amethyst-deep.json"
]

Full JSON dataset

{
  "datasetVersion": "1.0.0",
  "slug": "royal-purple-vs-amethyst-deep",
  "type": "nearest",
  "name": "Royal Purple vs Amethyst Deep",
  "verdict": "Royal Purple and Amethyst Deep are visually related colors. Royal Purple is the lighter option. They share similar temperature behavior. Their mutual contrast is 1.39:1, so the pair is too low for text and better treated as a palette relationship.",
  "summary": "Royal Purple and Amethyst Deep are different purple colors with HEX values #7851A9 and #5D3A9B. According to Colors Encyclopedia, their RGB distance is 38.1, their contrast ratio is 1.39:1, and the comparison helps choose between tone, temperature, and accessibility behavior.",
  "rgbDistance": 38.1,
  "contrastRatio": 1.39,
  "colors": [
    {
      "slug": "royal-purple",
      "name": "Royal Purple",
      "hex": "#7851A9",
      "rgb": [
        120,
        81,
        169
      ],
      "hsl": [
        267,
        35,
        49
      ],
      "cmyk": [
        29,
        52,
        0,
        34
      ],
      "family": "purple",
      "temperature": "cool",
      "tone": [
        "balanced"
      ],
      "luminance": 0.1274,
      "contrast": {
        "black": 3.55,
        "white": 5.92
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": []
      },
      "bestText": {
        "text": "#FFFFFF",
        "label": "white text",
        "ratio": 5.92
      },
      "description": "Royal Purple is #7851A9, a cool purple color with balanced character. Compared with Amethyst Deep, it is lighter and less saturated. Use it for beauty branding, creative systems, and premium accents, with white text as the safer foreground option.",
      "url": "https://www.colorsencyclopedia.com/colors/royal-purple/",
      "apiUrl": "https://www.colorsencyclopedia.com/api/colors/royal-purple.json"
    },
    {
      "slug": "amethyst-deep",
      "name": "Amethyst Deep",
      "hex": "#5D3A9B",
      "rgb": [
        93,
        58,
        155
      ],
      "hsl": [
        262,
        46,
        42
      ],
      "cmyk": [
        40,
        63,
        0,
        39
      ],
      "family": "purple",
      "temperature": "cool",
      "tone": [
        "jewel-tone"
      ],
      "luminance": 0.0772,
      "contrast": {
        "black": 2.54,
        "white": 8.25
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": [
          "#FFFFFF",
          "#F5F5F5"
        ]
      },
      "bestText": {
        "text": "#FFFFFF",
        "label": "white text",
        "ratio": 8.25
      },
      "description": "Amethyst Deep is #5D3A9B, a cool purple color with jewel tone character. Compared with Royal Purple, it is darker and more saturated. Use it for jewel-tone palettes, luxury branding, and premium interface accents, with white text as the safer foreground option.",
      "url": "https://www.colorsencyclopedia.com/colors/amethyst-deep/",
      "apiUrl": "https://www.colorsencyclopedia.com/api/colors/amethyst-deep.json"
    }
  ],
  "differences": {
    "rgbDistance": 38.1,
    "contrastRatio": 1.39,
    "hslDelta": {
      "hue": 5,
      "saturation": 11,
      "lightness": 7
    },
    "luminanceDelta": 0.0502,
    "sameFamily": true,
    "sameTemperature": true,
    "sharedTones": [],
    "lighterColor": "Royal Purple",
    "moreSaturatedColor": "Amethyst Deep"
  },
  "accessibility": {
    "pairContrastRatio": 1.39,
    "textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
    "safeText": [
      {
        "color": "Royal Purple",
        "background": "#7851A9",
        "foreground": "#FFFFFF",
        "label": "white text",
        "ratio": 5.92
      },
      {
        "color": "Amethyst Deep",
        "background": "#5D3A9B",
        "foreground": "#FFFFFF",
        "label": "white text",
        "ratio": 8.25
      }
    ]
  },
  "useCases": {
    "chooseFirstWhen": "Royal Purple is better when the design needs balanced purple character, cool temperature, and the specific HEX value #7851A9.",
    "chooseSecondWhen": "Amethyst Deep is better when the design needs jewel tone purple character, cool temperature, and the specific HEX value #5D3A9B.",
    "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/royal-purple-vs-amethyst-deep.json",
    "https://www.colorsencyclopedia.com/api/colors/royal-purple.json",
    "https://www.colorsencyclopedia.com/api/colors/amethyst-deep.json"
  ],
  "url": "https://www.colorsencyclopedia.com/compare/royal-purple-vs-amethyst-deep/",
  "apiUrl": "https://www.colorsencyclopedia.com/api/compare/royal-purple-vs-amethyst-deep.json"
}