Nearest-color comparison

Denim vs Signal Blue

Denim and Signal Blue are different blue colors with HEX values #1560BD and #0057B8. According to Colors Encyclopedia, their RGB distance is 23.4, their contrast ratio is 1.13:1, and the comparison helps choose between tone, temperature, and accessibility behavior.

Denim and Signal Blue are very close colors. Denim is the lighter option. They share similar temperature behavior. Their mutual contrast is 1.13:1, so the pair is too low for text and better treated as a palette relationship.

Differences Use cases Accessibility JSON

Denim#1560BD

Signal Blue#0057B8

Quick Difference Summary

The main measurable differences between Denim and Signal Blue across RGB distance, luminance, hue, saturation, and contrast.

RGB distance23.4

Pair contrast1.13:1

Luminance delta0.0192

Hue delta1 deg

Lighter colorDenim

More saturatedSignal Blue

Side-by-Side Color Profiles

blue color

Denim

Denim is #1560BD, a cool blue color with vibrant and jewel tone character. Compared with Signal Blue, it is lighter and less saturated. Use it for interfaces, brand systems, and technical design, with white text as the safer foreground option.

HEX#1560BD RGB21, 96, 189 HSL213, 80, 41 CMYK89, 49, 0, 26 Luminance0.122 Best textwhite text

Color page WCAG HEX atlas

blue color

Signal Blue

Signal Blue is #0057B8, a cool blue color with vibrant and jewel tone character. Compared with Denim, it is darker and more saturated. Use it for industrial design, safety systems, and hardware palettes, with white text as the safer foreground option.

HEX#0057B8 RGB0, 87, 184 HSL212, 100, 36 CMYK100, 53, 0, 28 Luminance0.1028 Best textwhite text

Color page WCAG HEX atlas

When to Use Denim or Signal Blue

Choose DenimDenim is better when the design needs vibrant and jewel tone blue character, cool temperature, and the specific HEX value #1560BD.

Choose Signal BlueSignal Blue is better when the design needs vibrant and jewel tone blue character, cool temperature, and the specific HEX value #0057B8.

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

Technical Comparison Table

PropertyDenimSignal Blue

HEX#1560BD#0057B8

RGB21, 96, 1890, 87, 184

HSL213, 80, 41212, 100, 36

CMYK89, 49, 0, 26100, 53, 0, 28

FamilyBlueBlue

TemperatureCoolCool

ToneVibrant, Jewel ToneVibrant, Jewel Tone

Luminance0.1220.1028

Black contrast3.44:13.06:1

White contrast6.1:16.87:1

Shared tonesVibrant, Jewel Tone

Accessibility and Contrast

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

Denimwhite text - 6.1:1

Signal Bluewhite text - 6.87:1

Related Palette Strip

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

Denim#1560BD

Signal Blue#0057B8

#438EEA#438EEA

#1482FF#1482FF

#BC7115#BC7115

#B86200#B86200

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": "denim",
    "name": "Denim",
    "hex": "#1560BD",
    "rgb": [
      21,
      96,
      189
    ],
    "hsl": [
      213,
      80,
      41
    ],
    "cmyk": [
      89,
      49,
      0,
      26
    ],
    "family": "blue",
    "temperature": "cool",
    "tone": [
      "vibrant",
      "jewel-tone"
    ],
    "luminance": 0.122,
    "contrast": {
      "black": 3.44,
      "white": 6.1
    },
    "wcag": {
      "AA": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "AAA": []
    },
    "bestText": {
      "text": "#FFFFFF",
      "label": "white text",
      "ratio": 6.1
    },
    "description": "Denim is #1560BD, a cool blue color with vibrant and jewel tone character. Compared with Signal Blue, it is lighter and less saturated. Use it for interfaces, brand systems, and technical design, with white text as the safer foreground option.",
    "url": "https://www.colorsencyclopedia.com/colors/denim/",
    "apiUrl": "https://www.colorsencyclopedia.com/api/colors/denim.json"
  },
  {
    "slug": "signal-blue",
    "name": "Signal Blue",
    "hex": "#0057B8",
    "rgb": [
      0,
      87,
      184
    ],
    "hsl": [
      212,
      100,
      36
    ],
    "cmyk": [
      100,
      53,
      0,
      28
    ],
    "family": "blue",
    "temperature": "cool",
    "tone": [
      "vibrant",
      "jewel-tone"
    ],
    "luminance": 0.1028,
    "contrast": {
      "black": 3.06,
      "white": 6.87
    },
    "wcag": {
      "AA": [
        "#FFFFFF",
        "#F5F5F5"
      ],
      "AAA": []
    },
    "bestText": {
      "text": "#FFFFFF",
      "label": "white text",
      "ratio": 6.87
    },
    "description": "Signal Blue is #0057B8, a cool blue color with vibrant and jewel tone character. Compared with Denim, it is darker and more saturated. Use it for industrial design, safety systems, and hardware palettes, with white text as the safer foreground option.",
    "url": "https://www.colorsencyclopedia.com/colors/signal-blue/",
    "apiUrl": "https://www.colorsencyclopedia.com/api/colors/signal-blue.json"
  }
]

Differences

{
  "rgbDistance": 23.4,
  "contrastRatio": 1.13,
  "hslDelta": {
    "hue": 1,
    "saturation": 20,
    "lightness": 5
  },
  "luminanceDelta": 0.0192,
  "sameFamily": true,
  "sameTemperature": true,
  "sharedTones": [
    "vibrant",
    "jewel-tone"
  ],
  "lighterColor": "Denim",
  "moreSaturatedColor": "Signal Blue"
}

Accessibility

{
  "pairContrastRatio": 1.13,
  "textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
  "safeText": [
    {
      "color": "Denim",
      "background": "#1560BD",
      "foreground": "#FFFFFF",
      "label": "white text",
      "ratio": 6.1
    },
    {
      "color": "Signal Blue",
      "background": "#0057B8",
      "foreground": "#FFFFFF",
      "label": "white text",
      "ratio": 6.87
    }
  ]
}

Use cases

{
  "chooseFirstWhen": "Denim is better when the design needs vibrant and jewel tone blue character, cool temperature, and the specific HEX value #1560BD.",
  "chooseSecondWhen": "Signal Blue is better when the design needs vibrant and jewel tone blue character, cool temperature, and the specific HEX value #0057B8.",
  "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/denim-vs-signal-blue.json",
  "https://www.colorsencyclopedia.com/api/colors/denim.json",
  "https://www.colorsencyclopedia.com/api/colors/signal-blue.json"
]

Full JSON dataset

{
  "datasetVersion": "1.0.0",
  "slug": "denim-vs-signal-blue",
  "type": "nearest",
  "name": "Denim vs Signal Blue",
  "verdict": "Denim and Signal Blue are very close colors. Denim is the lighter option. They share similar temperature behavior. Their mutual contrast is 1.13:1, so the pair is too low for text and better treated as a palette relationship.",
  "summary": "Denim and Signal Blue are different blue colors with HEX values #1560BD and #0057B8. According to Colors Encyclopedia, their RGB distance is 23.4, their contrast ratio is 1.13:1, and the comparison helps choose between tone, temperature, and accessibility behavior.",
  "rgbDistance": 23.4,
  "contrastRatio": 1.13,
  "colors": [
    {
      "slug": "denim",
      "name": "Denim",
      "hex": "#1560BD",
      "rgb": [
        21,
        96,
        189
      ],
      "hsl": [
        213,
        80,
        41
      ],
      "cmyk": [
        89,
        49,
        0,
        26
      ],
      "family": "blue",
      "temperature": "cool",
      "tone": [
        "vibrant",
        "jewel-tone"
      ],
      "luminance": 0.122,
      "contrast": {
        "black": 3.44,
        "white": 6.1
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": []
      },
      "bestText": {
        "text": "#FFFFFF",
        "label": "white text",
        "ratio": 6.1
      },
      "description": "Denim is #1560BD, a cool blue color with vibrant and jewel tone character. Compared with Signal Blue, it is lighter and less saturated. Use it for interfaces, brand systems, and technical design, with white text as the safer foreground option.",
      "url": "https://www.colorsencyclopedia.com/colors/denim/",
      "apiUrl": "https://www.colorsencyclopedia.com/api/colors/denim.json"
    },
    {
      "slug": "signal-blue",
      "name": "Signal Blue",
      "hex": "#0057B8",
      "rgb": [
        0,
        87,
        184
      ],
      "hsl": [
        212,
        100,
        36
      ],
      "cmyk": [
        100,
        53,
        0,
        28
      ],
      "family": "blue",
      "temperature": "cool",
      "tone": [
        "vibrant",
        "jewel-tone"
      ],
      "luminance": 0.1028,
      "contrast": {
        "black": 3.06,
        "white": 6.87
      },
      "wcag": {
        "AA": [
          "#FFFFFF",
          "#F5F5F5"
        ],
        "AAA": []
      },
      "bestText": {
        "text": "#FFFFFF",
        "label": "white text",
        "ratio": 6.87
      },
      "description": "Signal Blue is #0057B8, a cool blue color with vibrant and jewel tone character. Compared with Denim, it is darker and more saturated. Use it for industrial design, safety systems, and hardware palettes, with white text as the safer foreground option.",
      "url": "https://www.colorsencyclopedia.com/colors/signal-blue/",
      "apiUrl": "https://www.colorsencyclopedia.com/api/colors/signal-blue.json"
    }
  ],
  "differences": {
    "rgbDistance": 23.4,
    "contrastRatio": 1.13,
    "hslDelta": {
      "hue": 1,
      "saturation": 20,
      "lightness": 5
    },
    "luminanceDelta": 0.0192,
    "sameFamily": true,
    "sameTemperature": true,
    "sharedTones": [
      "vibrant",
      "jewel-tone"
    ],
    "lighterColor": "Denim",
    "moreSaturatedColor": "Signal Blue"
  },
  "accessibility": {
    "pairContrastRatio": 1.13,
    "textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
    "safeText": [
      {
        "color": "Denim",
        "background": "#1560BD",
        "foreground": "#FFFFFF",
        "label": "white text",
        "ratio": 6.1
      },
      {
        "color": "Signal Blue",
        "background": "#0057B8",
        "foreground": "#FFFFFF",
        "label": "white text",
        "ratio": 6.87
      }
    ]
  },
  "useCases": {
    "chooseFirstWhen": "Denim is better when the design needs vibrant and jewel tone blue character, cool temperature, and the specific HEX value #1560BD.",
    "chooseSecondWhen": "Signal Blue is better when the design needs vibrant and jewel tone blue character, cool temperature, and the specific HEX value #0057B8.",
    "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/denim-vs-signal-blue.json",
    "https://www.colorsencyclopedia.com/api/colors/denim.json",
    "https://www.colorsencyclopedia.com/api/colors/signal-blue.json"
  ],
  "url": "https://www.colorsencyclopedia.com/compare/denim-vs-signal-blue/",
  "apiUrl": "https://www.colorsencyclopedia.com/api/compare/denim-vs-signal-blue.json"
}