Nearest-color comparison
Aqua #00FFFF vs Deep Sky Blue #00BFFF: RGB distance 64 and contrast 1.69:1. Compare hue, luminance, saturation, WCAG and practical use.
Aqua and Deep Sky Blue are related but distinguishable, with an RGB distance of 64. Aqua is lighter by 0.3426, and their saturation is equal. Their mutual contrast is 1.69:1. The pair is too close for a readable foreground/background combination and works better as neighboring palette colors.
The main measurable differences between Aqua and Deep Sky Blue across RGB distance, luminance, hue, saturation, and contrast.
cyan color
Aqua is #00FFFF, a cool cyan with hue 180°, saturation 100% and luminance 0.7874. Beside Deep Sky Blue, it is lighter and equally saturated. Of the two standard text choices, black text gives the higher contrast at 16.75:1.
blue color
Deep Sky Blue is #00BFFF, a cool blue with hue 195°, saturation 100% and luminance 0.4448. Beside Aqua, it is darker and equally saturated. Of the two standard text choices, black text gives the higher contrast at 9.9:1.
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 Aqua and Deep Sky 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": "aqua",
"name": "Aqua",
"hex": "#00FFFF",
"rgb": [
0,
255,
255
],
"hsl": [
180,
100,
50
],
"cmyk": [
100,
0,
0,
0
],
"family": "cyan",
"temperature": "cool",
"tone": [
"vibrant"
],
"luminance": 0.7874,
"contrast": {
"black": 16.75,
"white": 1.25
},
"wcag": {
"AA": [
"#000000",
"#1A1A1A",
"#36454F"
],
"AAA": [
"#000000",
"#1A1A1A",
"#36454F"
]
},
"bestText": {
"text": "#000000",
"label": "black text",
"ratio": 16.75
},
"description": "Aqua is #00FFFF, a cool cyan color with vibrant character. Compared with Deep Sky Blue, it is lighter and similar in saturation. Use it for web design, css color systems, and ui prototyping, with black text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/aqua/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/aqua.json"
},
{
"slug": "deep-sky-blue",
"name": "Deep Sky Blue",
"hex": "#00BFFF",
"rgb": [
0,
191,
255
],
"hsl": [
195,
100,
50
],
"cmyk": [
100,
25,
0,
0
],
"family": "blue",
"temperature": "cool",
"tone": [
"vibrant"
],
"luminance": 0.4448,
"contrast": {
"black": 9.9,
"white": 2.12
},
"wcag": {
"AA": [
"#000000",
"#1A1A1A",
"#36454F"
],
"AAA": [
"#000000",
"#1A1A1A"
]
},
"bestText": {
"text": "#000000",
"label": "black text",
"ratio": 9.9
},
"description": "Deep Sky Blue is #00BFFF, a cool blue color with vibrant character. Compared with Aqua, it is darker and similar in saturation. Use it for web design, css color systems, and ui prototyping, with black text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/deep-sky-blue/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/deep-sky-blue.json"
}
]{
"rgbDistance": 64,
"contrastRatio": 1.69,
"hslDelta": {
"hue": 15,
"saturation": 0,
"lightness": 0
},
"luminanceDelta": 0.3426,
"sameFamily": false,
"sameTemperature": true,
"sharedTones": [
"vibrant"
],
"lighterColor": "Aqua",
"moreSaturatedColor": "Aqua"
}{
"pairContrastRatio": 1.69,
"textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
"safeText": [
{
"color": "Aqua",
"background": "#00FFFF",
"foreground": "#000000",
"label": "black text",
"ratio": 16.75
},
{
"color": "Deep Sky Blue",
"background": "#00BFFF",
"foreground": "#000000",
"label": "black text",
"ratio": 9.9
}
]
}{
"chooseFirstWhen": "Aqua is better when the design needs vibrant cyan character, cool temperature, and the specific HEX value #00FFFF.",
"chooseSecondWhen": "Deep Sky Blue is better when the design needs vibrant blue character, cool temperature, and the specific HEX value #00BFFF.",
"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/aqua-vs-deep-sky-blue.json",
"https://www.colorsencyclopedia.com/api/colors/aqua.json",
"https://www.colorsencyclopedia.com/api/colors/deep-sky-blue.json"
]{
"datasetVersion": "1.0.0",
"slug": "aqua-vs-deep-sky-blue",
"type": "nearest",
"name": "Aqua vs Deep Sky Blue",
"verdict": "Aqua and Deep Sky Blue are visually related colors. Aqua is the lighter option. They share similar temperature behavior. Their mutual contrast is 1.69:1, so the pair is too low for text and better treated as a palette relationship.",
"summary": "Aqua and Deep Sky Blue are different cyan and blue colors with HEX values #00FFFF and #00BFFF. According to Colors Encyclopedia, their RGB distance is 64, their contrast ratio is 1.69:1, and the comparison helps choose between tone, temperature, and accessibility behavior.",
"rgbDistance": 64,
"contrastRatio": 1.69,
"colors": [
{
"slug": "aqua",
"name": "Aqua",
"hex": "#00FFFF",
"rgb": [
0,
255,
255
],
"hsl": [
180,
100,
50
],
"cmyk": [
100,
0,
0,
0
],
"family": "cyan",
"temperature": "cool",
"tone": [
"vibrant"
],
"luminance": 0.7874,
"contrast": {
"black": 16.75,
"white": 1.25
},
"wcag": {
"AA": [
"#000000",
"#1A1A1A",
"#36454F"
],
"AAA": [
"#000000",
"#1A1A1A",
"#36454F"
]
},
"bestText": {
"text": "#000000",
"label": "black text",
"ratio": 16.75
},
"description": "Aqua is #00FFFF, a cool cyan color with vibrant character. Compared with Deep Sky Blue, it is lighter and similar in saturation. Use it for web design, css color systems, and ui prototyping, with black text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/aqua/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/aqua.json"
},
{
"slug": "deep-sky-blue",
"name": "Deep Sky Blue",
"hex": "#00BFFF",
"rgb": [
0,
191,
255
],
"hsl": [
195,
100,
50
],
"cmyk": [
100,
25,
0,
0
],
"family": "blue",
"temperature": "cool",
"tone": [
"vibrant"
],
"luminance": 0.4448,
"contrast": {
"black": 9.9,
"white": 2.12
},
"wcag": {
"AA": [
"#000000",
"#1A1A1A",
"#36454F"
],
"AAA": [
"#000000",
"#1A1A1A"
]
},
"bestText": {
"text": "#000000",
"label": "black text",
"ratio": 9.9
},
"description": "Deep Sky Blue is #00BFFF, a cool blue color with vibrant character. Compared with Aqua, it is darker and similar in saturation. Use it for web design, css color systems, and ui prototyping, with black text as the safer foreground option.",
"url": "https://www.colorsencyclopedia.com/colors/deep-sky-blue/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/deep-sky-blue.json"
}
],
"differences": {
"rgbDistance": 64,
"contrastRatio": 1.69,
"hslDelta": {
"hue": 15,
"saturation": 0,
"lightness": 0
},
"luminanceDelta": 0.3426,
"sameFamily": false,
"sameTemperature": true,
"sharedTones": [
"vibrant"
],
"lighterColor": "Aqua",
"moreSaturatedColor": "Aqua"
},
"accessibility": {
"pairContrastRatio": 1.69,
"textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
"safeText": [
{
"color": "Aqua",
"background": "#00FFFF",
"foreground": "#000000",
"label": "black text",
"ratio": 16.75
},
{
"color": "Deep Sky Blue",
"background": "#00BFFF",
"foreground": "#000000",
"label": "black text",
"ratio": 9.9
}
]
},
"useCases": {
"chooseFirstWhen": "Aqua is better when the design needs vibrant cyan character, cool temperature, and the specific HEX value #00FFFF.",
"chooseSecondWhen": "Deep Sky Blue is better when the design needs vibrant blue character, cool temperature, and the specific HEX value #00BFFF.",
"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/aqua-vs-deep-sky-blue.json",
"https://www.colorsencyclopedia.com/api/colors/aqua.json",
"https://www.colorsencyclopedia.com/api/colors/deep-sky-blue.json"
],
"url": "https://www.colorsencyclopedia.com/compare/aqua-vs-deep-sky-blue/",
"apiUrl": "https://www.colorsencyclopedia.com/api/compare/aqua-vs-deep-sky-blue.json"
}