Nearest-color comparison
Periwinkle #CCCCFF vs Arctic Blue #C6E6FB: RGB distance 27 and contrast 1.18:1. Compare hue, luminance, saturation, WCAG and practical use.
Periwinkle and Arctic Blue are related but distinguishable, with an RGB distance of 27. Arctic Blue is lighter by 0.1232, and Periwinkle is more saturated by 13 percentage points. Their mutual contrast is 1.18:1. The pair is too close for a readable foreground/background combination and works better as neighboring palette colors.
The main measurable differences between Periwinkle and Arctic Blue across RGB distance, luminance, hue, saturation, and contrast.
blue color
Periwinkle is #CCCCFF, a cool blue with hue 240°, saturation 100% and luminance 0.6324. Beside Arctic Blue, it is darker and more saturated. Of the two standard text choices, black text gives the higher contrast at 13.65:1.
blue color
Arctic Blue is #C6E6FB, a cool blue with hue 204°, saturation 87% and luminance 0.7556. Beside Periwinkle, it is lighter and less saturated. Of the two standard text choices, black text gives the higher contrast at 16.11:1.
Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.
Downloadable color comparison infographic
Save a high-resolution comparison infographic with both HEX colors, visual distance, mutual contrast, and accessibility guidance.
A compact visual strip showing the two compared colors with nearby harmony and variant context.
Machine-readable data
Structured comparison data for Periwinkle and Arctic Blue, including color systems, RGB distance, HSL deltas, contrast, accessibility guidance, use cases, and API links.
Colors Encyclopedia
colorsBoth named color records with HEX, RGB, HSL, CMYK, luminance, WCAG, and linksdifferencesRGB distance, HSL deltas, luminance delta, contrast, and shared attributesaccessibilityPair contrast and safer text choices for each coloruseCasesWhen to choose each color and when to use them togetherrelatedApiMachine-readable comparison and color endpoints[
{
"slug": "periwinkle",
"name": "Periwinkle",
"hex": "#CCCCFF",
"rgb": [
204,
204,
255
],
"hsl": [
240,
100,
90
],
"cmyk": [
20,
20,
0,
0
],
"family": "blue",
"temperature": "cool",
"tone": [
"light",
"pastel"
],
"luminance": 0.6324,
"contrast": {
"black": 13.65,
"white": 1.54
},
"wcag": {
"AA": [
"#000000",
"#1A1A1A",
"#36454F"
],
"AAA": [
"#000000",
"#1A1A1A"
]
},
"bestText": {
"text": "#000000",
"label": "black text",
"ratio": 13.65
},
"description": "Periwinkle is #CCCCFF, a cool blue color with light and pastel character. Compared with Arctic Blue, it is darker and more saturated. Use it for beauty branding, creative systems, and premium accents, with black text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/periwinkle/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/periwinkle.json"
},
{
"slug": "arctic-blue",
"name": "Arctic Blue",
"hex": "#C6E6FB",
"rgb": [
198,
230,
251
],
"hsl": [
204,
87,
88
],
"cmyk": [
21,
8,
0,
2
],
"family": "blue",
"temperature": "cool",
"tone": [
"light",
"pastel"
],
"luminance": 0.7556,
"contrast": {
"black": 16.11,
"white": 1.3
},
"wcag": {
"AA": [
"#000000",
"#1A1A1A",
"#36454F"
],
"AAA": [
"#000000",
"#1A1A1A",
"#36454F"
]
},
"bestText": {
"text": "#000000",
"label": "black text",
"ratio": 16.11
},
"description": "Arctic Blue is #C6E6FB, a cool blue color with light and pastel character. Compared with Periwinkle, 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/arctic-blue/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/arctic-blue.json"
}
]{
"rgbDistance": 27,
"contrastRatio": 1.18,
"hslDelta": {
"hue": 36,
"saturation": 13,
"lightness": 2
},
"luminanceDelta": 0.1232,
"sameFamily": true,
"sameTemperature": true,
"sharedTones": [
"light",
"pastel"
],
"lighterColor": "Arctic Blue",
"moreSaturatedColor": "Periwinkle"
}{
"pairContrastRatio": 1.18,
"textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
"safeText": [
{
"color": "Periwinkle",
"background": "#CCCCFF",
"foreground": "#000000",
"label": "black text",
"ratio": 13.65
},
{
"color": "Arctic Blue",
"background": "#C6E6FB",
"foreground": "#000000",
"label": "black text",
"ratio": 16.11
}
]
}{
"chooseFirstWhen": "Periwinkle is better when the design needs light and pastel blue character, cool temperature, and the specific HEX value #CCCCFF.",
"chooseSecondWhen": "Arctic Blue is better when the design needs light and pastel blue character, cool temperature, and the specific HEX value #C6E6FB.",
"useTogetherWhen": "Use these colors together as related palette neighbors, subtle material differences, or tonal alternatives rather than readable foreground/background pairs."
}[
"https://www.colorsencyclopedia.com/api/compare/periwinkle-vs-arctic-blue.json",
"https://www.colorsencyclopedia.com/api/colors/periwinkle.json",
"https://www.colorsencyclopedia.com/api/colors/arctic-blue.json"
]{
"datasetVersion": "1.0.0",
"slug": "periwinkle-vs-arctic-blue",
"type": "nearest",
"name": "Periwinkle vs Arctic Blue",
"verdict": "Periwinkle and Arctic Blue are visually related colors. Arctic Blue is the lighter option. They share similar temperature behavior. Their mutual contrast is 1.18:1, so the pair is too low for text and better treated as a palette relationship.",
"summary": "Periwinkle and Arctic Blue are different blue colors with HEX values #CCCCFF and #C6E6FB. According to Colors Encyclopedia, their RGB distance is 27, their contrast ratio is 1.18:1, and the comparison helps choose between tone, temperature, and accessibility behavior.",
"rgbDistance": 27,
"contrastRatio": 1.18,
"colors": [
{
"slug": "periwinkle",
"name": "Periwinkle",
"hex": "#CCCCFF",
"rgb": [
204,
204,
255
],
"hsl": [
240,
100,
90
],
"cmyk": [
20,
20,
0,
0
],
"family": "blue",
"temperature": "cool",
"tone": [
"light",
"pastel"
],
"luminance": 0.6324,
"contrast": {
"black": 13.65,
"white": 1.54
},
"wcag": {
"AA": [
"#000000",
"#1A1A1A",
"#36454F"
],
"AAA": [
"#000000",
"#1A1A1A"
]
},
"bestText": {
"text": "#000000",
"label": "black text",
"ratio": 13.65
},
"description": "Periwinkle is #CCCCFF, a cool blue color with light and pastel character. Compared with Arctic Blue, it is darker and more saturated. Use it for beauty branding, creative systems, and premium accents, with black text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/periwinkle/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/periwinkle.json"
},
{
"slug": "arctic-blue",
"name": "Arctic Blue",
"hex": "#C6E6FB",
"rgb": [
198,
230,
251
],
"hsl": [
204,
87,
88
],
"cmyk": [
21,
8,
0,
2
],
"family": "blue",
"temperature": "cool",
"tone": [
"light",
"pastel"
],
"luminance": 0.7556,
"contrast": {
"black": 16.11,
"white": 1.3
},
"wcag": {
"AA": [
"#000000",
"#1A1A1A",
"#36454F"
],
"AAA": [
"#000000",
"#1A1A1A",
"#36454F"
]
},
"bestText": {
"text": "#000000",
"label": "black text",
"ratio": 16.11
},
"description": "Arctic Blue is #C6E6FB, a cool blue color with light and pastel character. Compared with Periwinkle, 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/arctic-blue/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/arctic-blue.json"
}
],
"differences": {
"rgbDistance": 27,
"contrastRatio": 1.18,
"hslDelta": {
"hue": 36,
"saturation": 13,
"lightness": 2
},
"luminanceDelta": 0.1232,
"sameFamily": true,
"sameTemperature": true,
"sharedTones": [
"light",
"pastel"
],
"lighterColor": "Arctic Blue",
"moreSaturatedColor": "Periwinkle"
},
"accessibility": {
"pairContrastRatio": 1.18,
"textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
"safeText": [
{
"color": "Periwinkle",
"background": "#CCCCFF",
"foreground": "#000000",
"label": "black text",
"ratio": 13.65
},
{
"color": "Arctic Blue",
"background": "#C6E6FB",
"foreground": "#000000",
"label": "black text",
"ratio": 16.11
}
]
},
"useCases": {
"chooseFirstWhen": "Periwinkle is better when the design needs light and pastel blue character, cool temperature, and the specific HEX value #CCCCFF.",
"chooseSecondWhen": "Arctic Blue is better when the design needs light and pastel blue character, cool temperature, and the specific HEX value #C6E6FB.",
"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/periwinkle-vs-arctic-blue.json",
"https://www.colorsencyclopedia.com/api/colors/periwinkle.json",
"https://www.colorsencyclopedia.com/api/colors/arctic-blue.json"
],
"url": "https://www.colorsencyclopedia.com/compare/periwinkle-vs-arctic-blue/",
"apiUrl": "https://www.colorsencyclopedia.com/api/compare/periwinkle-vs-arctic-blue.json"
}