Nearest-color comparison

Cadet Gray vs Tourmaline

Cadet Gray and Tourmaline are different blue and cyan colors with HEX values #91A3B0 and #86A1A9. According to Colors Encyclopedia, their RGB distance is 13.2, their contrast ratio is 1.05:1, and the comparison helps choose between tone, temperature, and accessibility behavior.

Cadet Gray and Tourmaline are very close colors. Cadet Gray is the lighter option. They share similar temperature behavior. Their mutual contrast is 1.05:1, so the pair is too low for text and better treated as a palette relationship.

Differences Use cases Accessibility JSON

Cadet Gray#91A3B0

Tourmaline#86A1A9

Quick Difference Summary

The main measurable differences between Cadet Gray and Tourmaline across RGB distance, luminance, hue, saturation, and contrast.

RGB distance13.2

Pair contrast1.05:1

Luminance delta0.0193

Hue delta11 deg

Lighter colorCadet Gray

More saturatedTourmaline

Side-by-Side Color Profiles

blue color

Cadet Gray

Cadet Gray is #91A3B0, a cool blue color with muted character. Compared with Tourmaline, it is lighter and less saturated. Use it for interfaces, brand systems, and technical design, with black text as the safer foreground option.

HEX#91A3B0 RGB145, 163, 176 HSL205, 16, 63 CMYK18, 7, 0, 31 Luminance0.3535 Best textblack text

Color page WCAG HEX atlas

cyan color

Tourmaline

Tourmaline is #86A1A9, a cool cyan color with muted character. Compared with Cadet Gray, it is darker and more saturated. Use it for jewel-tone palettes, luxury branding, and premium interface accents, with black text as the safer foreground option.

HEX#86A1A9 RGB134, 161, 169 HSL194, 17, 59 CMYK21, 5, 0, 34 Luminance0.3342 Best textblack text

Color page WCAG HEX atlas

When to Use Cadet Gray or Tourmaline

Choose Cadet GrayCadet Gray is better when the design needs muted blue character, cool temperature, and the specific HEX value #91A3B0.

Choose TourmalineTourmaline is better when the design needs muted cyan character, cool temperature, and the specific HEX value #86A1A9.

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

Technical Comparison Table

PropertyCadet GrayTourmaline

HEX#91A3B0#86A1A9

RGB145, 163, 176134, 161, 169

HSL205, 16, 63194, 17, 59

CMYK18, 7, 0, 3121, 5, 0, 34

FamilyBlueCyan

TemperatureCoolCool

ToneMutedMuted

Luminance0.35350.3342

Black contrast8.07:17.68:1

White contrast2.6:12.73:1

Shared tonesMuted

Accessibility and Contrast

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

Cadet Grayblack text - 8.07:1

Tourmalineblack text - 7.68:1

Related Palette Strip

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

Cadet Gray#91A3B0

Tourmaline#86A1A9

#C7D0D6#C7D0D6

#BACACE#BACACE

#B09E92#B09E92

#A88D85#A88D85

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": "cadet-gray",
    "name": "Cadet Gray",
    "hex": "#91A3B0",
    "rgb": [
      145,
      163,
      176
    ],
    "hsl": [
      205,
      16,
      63
    ],
    "cmyk": [
      18,
      7,
      0,
      31
    ],
    "family": "blue",
    "temperature": "cool",
    "tone": [
      "muted"
    ],
    "luminance": 0.3535,
    "contrast": {
      "black": 8.07,
      "white": 2.6
    },
    "wcag": {
      "AA": [
        "#000000",
        "#1A1A1A"
      ],
      "AAA": [
        "#000000"
      ]
    },
    "bestText": {
      "text": "#000000",
      "label": "black text",
      "ratio": 8.07
    },
    "description": "Cadet Gray is #91A3B0, a cool blue color with muted character. Compared with Tourmaline, it is lighter and less saturated. Use it for interfaces, brand systems, and technical design, with black text as the safer foreground option.",
    "url": "https://www.colorsencyclopedia.com/colors/cadet-gray/",
    "apiUrl": "https://www.colorsencyclopedia.com/api/colors/cadet-gray.json"
  },
  {
    "slug": "tourmaline",
    "name": "Tourmaline",
    "hex": "#86A1A9",
    "rgb": [
      134,
      161,
      169
    ],
    "hsl": [
      194,
      17,
      59
    ],
    "cmyk": [
      21,
      5,
      0,
      34
    ],
    "family": "cyan",
    "temperature": "cool",
    "tone": [
      "muted"
    ],
    "luminance": 0.3342,
    "contrast": {
      "black": 7.68,
      "white": 2.73
    },
    "wcag": {
      "AA": [
        "#000000",
        "#1A1A1A"
      ],
      "AAA": [
        "#000000"
      ]
    },
    "bestText": {
      "text": "#000000",
      "label": "black text",
      "ratio": 7.68
    },
    "description": "Tourmaline is #86A1A9, a cool cyan color with muted character. Compared with Cadet Gray, it is darker and more saturated. Use it for jewel-tone palettes, luxury branding, and premium interface accents, with black text as the safer foreground option.",
    "url": "https://www.colorsencyclopedia.com/colors/tourmaline/",
    "apiUrl": "https://www.colorsencyclopedia.com/api/colors/tourmaline.json"
  }
]

Differences

{
  "rgbDistance": 13.2,
  "contrastRatio": 1.05,
  "hslDelta": {
    "hue": 11,
    "saturation": 1,
    "lightness": 4
  },
  "luminanceDelta": 0.0193,
  "sameFamily": false,
  "sameTemperature": true,
  "sharedTones": [
    "muted"
  ],
  "lighterColor": "Cadet Gray",
  "moreSaturatedColor": "Tourmaline"
}

Accessibility

{
  "pairContrastRatio": 1.05,
  "textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
  "safeText": [
    {
      "color": "Cadet Gray",
      "background": "#91A3B0",
      "foreground": "#000000",
      "label": "black text",
      "ratio": 8.07
    },
    {
      "color": "Tourmaline",
      "background": "#86A1A9",
      "foreground": "#000000",
      "label": "black text",
      "ratio": 7.68
    }
  ]
}

Use cases

{
  "chooseFirstWhen": "Cadet Gray is better when the design needs muted blue character, cool temperature, and the specific HEX value #91A3B0.",
  "chooseSecondWhen": "Tourmaline is better when the design needs muted cyan character, cool temperature, and the specific HEX value #86A1A9.",
  "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/cadet-gray-vs-tourmaline.json",
  "https://www.colorsencyclopedia.com/api/colors/cadet-gray.json",
  "https://www.colorsencyclopedia.com/api/colors/tourmaline.json"
]

Full JSON dataset

{
  "datasetVersion": "1.0.0",
  "slug": "cadet-gray-vs-tourmaline",
  "type": "nearest",
  "name": "Cadet Gray vs Tourmaline",
  "verdict": "Cadet Gray and Tourmaline are very close colors. Cadet Gray is the lighter option. They share similar temperature behavior. Their mutual contrast is 1.05:1, so the pair is too low for text and better treated as a palette relationship.",
  "summary": "Cadet Gray and Tourmaline are different blue and cyan colors with HEX values #91A3B0 and #86A1A9. According to Colors Encyclopedia, their RGB distance is 13.2, their contrast ratio is 1.05:1, and the comparison helps choose between tone, temperature, and accessibility behavior.",
  "rgbDistance": 13.2,
  "contrastRatio": 1.05,
  "colors": [
    {
      "slug": "cadet-gray",
      "name": "Cadet Gray",
      "hex": "#91A3B0",
      "rgb": [
        145,
        163,
        176
      ],
      "hsl": [
        205,
        16,
        63
      ],
      "cmyk": [
        18,
        7,
        0,
        31
      ],
      "family": "blue",
      "temperature": "cool",
      "tone": [
        "muted"
      ],
      "luminance": 0.3535,
      "contrast": {
        "black": 8.07,
        "white": 2.6
      },
      "wcag": {
        "AA": [
          "#000000",
          "#1A1A1A"
        ],
        "AAA": [
          "#000000"
        ]
      },
      "bestText": {
        "text": "#000000",
        "label": "black text",
        "ratio": 8.07
      },
      "description": "Cadet Gray is #91A3B0, a cool blue color with muted character. Compared with Tourmaline, it is lighter and less saturated. Use it for interfaces, brand systems, and technical design, with black text as the safer foreground option.",
      "url": "https://www.colorsencyclopedia.com/colors/cadet-gray/",
      "apiUrl": "https://www.colorsencyclopedia.com/api/colors/cadet-gray.json"
    },
    {
      "slug": "tourmaline",
      "name": "Tourmaline",
      "hex": "#86A1A9",
      "rgb": [
        134,
        161,
        169
      ],
      "hsl": [
        194,
        17,
        59
      ],
      "cmyk": [
        21,
        5,
        0,
        34
      ],
      "family": "cyan",
      "temperature": "cool",
      "tone": [
        "muted"
      ],
      "luminance": 0.3342,
      "contrast": {
        "black": 7.68,
        "white": 2.73
      },
      "wcag": {
        "AA": [
          "#000000",
          "#1A1A1A"
        ],
        "AAA": [
          "#000000"
        ]
      },
      "bestText": {
        "text": "#000000",
        "label": "black text",
        "ratio": 7.68
      },
      "description": "Tourmaline is #86A1A9, a cool cyan color with muted character. Compared with Cadet Gray, it is darker and more saturated. Use it for jewel-tone palettes, luxury branding, and premium interface accents, with black text as the safer foreground option.",
      "url": "https://www.colorsencyclopedia.com/colors/tourmaline/",
      "apiUrl": "https://www.colorsencyclopedia.com/api/colors/tourmaline.json"
    }
  ],
  "differences": {
    "rgbDistance": 13.2,
    "contrastRatio": 1.05,
    "hslDelta": {
      "hue": 11,
      "saturation": 1,
      "lightness": 4
    },
    "luminanceDelta": 0.0193,
    "sameFamily": false,
    "sameTemperature": true,
    "sharedTones": [
      "muted"
    ],
    "lighterColor": "Cadet Gray",
    "moreSaturatedColor": "Tourmaline"
  },
  "accessibility": {
    "pairContrastRatio": 1.05,
    "textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
    "safeText": [
      {
        "color": "Cadet Gray",
        "background": "#91A3B0",
        "foreground": "#000000",
        "label": "black text",
        "ratio": 8.07
      },
      {
        "color": "Tourmaline",
        "background": "#86A1A9",
        "foreground": "#000000",
        "label": "black text",
        "ratio": 7.68
      }
    ]
  },
  "useCases": {
    "chooseFirstWhen": "Cadet Gray is better when the design needs muted blue character, cool temperature, and the specific HEX value #91A3B0.",
    "chooseSecondWhen": "Tourmaline is better when the design needs muted cyan character, cool temperature, and the specific HEX value #86A1A9.",
    "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/cadet-gray-vs-tourmaline.json",
    "https://www.colorsencyclopedia.com/api/colors/cadet-gray.json",
    "https://www.colorsencyclopedia.com/api/colors/tourmaline.json"
  ],
  "url": "https://www.colorsencyclopedia.com/compare/cadet-gray-vs-tourmaline/",
  "apiUrl": "https://www.colorsencyclopedia.com/api/compare/cadet-gray-vs-tourmaline.json"
}