Nearest-color comparison
Medium Aquamarine #66CDAA vs Medium Turquoise #48D1CC: RGB distance 45.5 and contrast 1.04:1. Compare hue, luminance, saturation, WCAG and practical use.
Medium Aquamarine and Medium Turquoise are related but distinguishable, with an RGB distance of 45.5. Medium Turquoise is lighter by 0.0195, and Medium Turquoise is more saturated by 9 percentage points. Their mutual contrast is 1.04:1. The pair is too close for a readable foreground/background combination and works better as neighboring palette colors.
The main measurable differences between Medium Aquamarine and Medium Turquoise across RGB distance, luminance, hue, saturation, and contrast.
green color
Medium Aquamarine is #66CDAA, a cool green with hue 160°, saturation 51% and luminance 0.4939. Beside Medium Turquoise, it is darker and less saturated. Of the two standard text choices, black text gives the higher contrast at 10.88:1.
cyan color
Medium Turquoise is #48D1CC, a cool cyan with hue 178°, saturation 60% and luminance 0.5134. Beside Medium Aquamarine, it is lighter and more saturated. Of the two standard text choices, black text gives the higher contrast at 11.27:1.
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 Medium Aquamarine and Medium Turquoise, 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": "medium-aquamarine",
"name": "Medium Aquamarine",
"hex": "#66CDAA",
"rgb": [
102,
205,
170
],
"hsl": [
160,
51,
60
],
"cmyk": [
50,
0,
17,
20
],
"family": "green",
"temperature": "cool",
"tone": [
"earth-tone"
],
"luminance": 0.4939,
"contrast": {
"black": 10.88,
"white": 1.93
},
"wcag": {
"AA": [
"#000000",
"#1A1A1A",
"#36454F"
],
"AAA": [
"#000000",
"#1A1A1A"
]
},
"bestText": {
"text": "#000000",
"label": "black text",
"ratio": 10.88
},
"description": "Medium Aquamarine is #66CDAA, a cool green color with earth tone character. Compared with Medium Turquoise, it is darker and less saturated. 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/medium-aquamarine/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/medium-aquamarine.json"
},
{
"slug": "medium-turquoise",
"name": "Medium Turquoise",
"hex": "#48D1CC",
"rgb": [
72,
209,
204
],
"hsl": [
178,
60,
55
],
"cmyk": [
66,
0,
2,
18
],
"family": "cyan",
"temperature": "cool",
"tone": [
"balanced"
],
"luminance": 0.5134,
"contrast": {
"black": 11.27,
"white": 1.86
},
"wcag": {
"AA": [
"#000000",
"#1A1A1A",
"#36454F"
],
"AAA": [
"#000000",
"#1A1A1A"
]
},
"bestText": {
"text": "#000000",
"label": "black text",
"ratio": 11.27
},
"description": "Medium Turquoise is #48D1CC, a cool cyan color with balanced character. Compared with Medium Aquamarine, it is lighter and more saturated. 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/medium-turquoise/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/medium-turquoise.json"
}
]{
"rgbDistance": 45.5,
"contrastRatio": 1.04,
"hslDelta": {
"hue": 18,
"saturation": 9,
"lightness": 5
},
"luminanceDelta": 0.0195,
"sameFamily": false,
"sameTemperature": true,
"sharedTones": [],
"lighterColor": "Medium Turquoise",
"moreSaturatedColor": "Medium Turquoise"
}{
"pairContrastRatio": 1.04,
"textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
"safeText": [
{
"color": "Medium Aquamarine",
"background": "#66CDAA",
"foreground": "#000000",
"label": "black text",
"ratio": 10.88
},
{
"color": "Medium Turquoise",
"background": "#48D1CC",
"foreground": "#000000",
"label": "black text",
"ratio": 11.27
}
]
}{
"chooseFirstWhen": "Medium Aquamarine is better when the design needs earth tone green character, cool temperature, and the specific HEX value #66CDAA.",
"chooseSecondWhen": "Medium Turquoise is better when the design needs balanced cyan character, cool temperature, and the specific HEX value #48D1CC.",
"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/medium-aquamarine-vs-medium-turquoise.json",
"https://www.colorsencyclopedia.com/api/colors/medium-aquamarine.json",
"https://www.colorsencyclopedia.com/api/colors/medium-turquoise.json"
]{
"datasetVersion": "1.0.0",
"slug": "medium-aquamarine-vs-medium-turquoise",
"type": "nearest",
"name": "Medium Aquamarine vs Medium Turquoise",
"verdict": "Medium Aquamarine and Medium Turquoise are visually related colors. Medium Turquoise is the lighter option. They share similar temperature behavior. Their mutual contrast is 1.04:1, so the pair is too low for text and better treated as a palette relationship.",
"summary": "Medium Aquamarine and Medium Turquoise are different green and cyan colors with HEX values #66CDAA and #48D1CC. According to Colors Encyclopedia, their RGB distance is 45.5, their contrast ratio is 1.04:1, and the comparison helps choose between tone, temperature, and accessibility behavior.",
"rgbDistance": 45.5,
"contrastRatio": 1.04,
"colors": [
{
"slug": "medium-aquamarine",
"name": "Medium Aquamarine",
"hex": "#66CDAA",
"rgb": [
102,
205,
170
],
"hsl": [
160,
51,
60
],
"cmyk": [
50,
0,
17,
20
],
"family": "green",
"temperature": "cool",
"tone": [
"earth-tone"
],
"luminance": 0.4939,
"contrast": {
"black": 10.88,
"white": 1.93
},
"wcag": {
"AA": [
"#000000",
"#1A1A1A",
"#36454F"
],
"AAA": [
"#000000",
"#1A1A1A"
]
},
"bestText": {
"text": "#000000",
"label": "black text",
"ratio": 10.88
},
"description": "Medium Aquamarine is #66CDAA, a cool green color with earth tone character. Compared with Medium Turquoise, it is darker and less saturated. 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/medium-aquamarine/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/medium-aquamarine.json"
},
{
"slug": "medium-turquoise",
"name": "Medium Turquoise",
"hex": "#48D1CC",
"rgb": [
72,
209,
204
],
"hsl": [
178,
60,
55
],
"cmyk": [
66,
0,
2,
18
],
"family": "cyan",
"temperature": "cool",
"tone": [
"balanced"
],
"luminance": 0.5134,
"contrast": {
"black": 11.27,
"white": 1.86
},
"wcag": {
"AA": [
"#000000",
"#1A1A1A",
"#36454F"
],
"AAA": [
"#000000",
"#1A1A1A"
]
},
"bestText": {
"text": "#000000",
"label": "black text",
"ratio": 11.27
},
"description": "Medium Turquoise is #48D1CC, a cool cyan color with balanced character. Compared with Medium Aquamarine, it is lighter and more saturated. 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/medium-turquoise/",
"apiUrl": "https://www.colorsencyclopedia.com/api/colors/medium-turquoise.json"
}
],
"differences": {
"rgbDistance": 45.5,
"contrastRatio": 1.04,
"hslDelta": {
"hue": 18,
"saturation": 9,
"lightness": 5
},
"luminanceDelta": 0.0195,
"sameFamily": false,
"sameTemperature": true,
"sharedTones": [],
"lighterColor": "Medium Turquoise",
"moreSaturatedColor": "Medium Turquoise"
},
"accessibility": {
"pairContrastRatio": 1.04,
"textRecommendation": "Do not use this pair for text; use it for neighboring palette colors, decoration, or low-emphasis surfaces.",
"safeText": [
{
"color": "Medium Aquamarine",
"background": "#66CDAA",
"foreground": "#000000",
"label": "black text",
"ratio": 10.88
},
{
"color": "Medium Turquoise",
"background": "#48D1CC",
"foreground": "#000000",
"label": "black text",
"ratio": 11.27
}
]
},
"useCases": {
"chooseFirstWhen": "Medium Aquamarine is better when the design needs earth tone green character, cool temperature, and the specific HEX value #66CDAA.",
"chooseSecondWhen": "Medium Turquoise is better when the design needs balanced cyan character, cool temperature, and the specific HEX value #48D1CC.",
"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/medium-aquamarine-vs-medium-turquoise.json",
"https://www.colorsencyclopedia.com/api/colors/medium-aquamarine.json",
"https://www.colorsencyclopedia.com/api/colors/medium-turquoise.json"
],
"url": "https://www.colorsencyclopedia.com/compare/medium-aquamarine-vs-medium-turquoise/",
"apiUrl": "https://www.colorsencyclopedia.com/api/compare/medium-aquamarine-vs-medium-turquoise.json"
}