Mediumaquamarine
mediumaquamarine · #66CDAA
HEX
#66CDAA
RGB
rgb(102, 205, 170)
CMYK
cmyk(50%, 0%, 17%, 20%)
HSL
hsl(160, 51%, 60%)
LAB
lab(75.7, -38.3, 8.3)
What is Mediumaquamarine?
Mediumaquamarine is the mediumaquamarine reference in the CSS Named Colors. Its sRGB value is #66CDAA (rgb 102, 205, 170). It sits in the cyan family. The 147 named colors defined by the W3C CSS Color Module Level 4 specification — usable directly in CSS as keywords like 'crimson' or 'rebeccapurple'. See disclaimer for accuracy and trademark notes.
Accessibility
WCAG 2.1 contrast checks for Mediumaquamarine as a background.
Black text on this color
White text on this color
Shades, tints & tonal scale of Mediumaquamarine
An 11-step tonal scale derived from Mediumaquamarine (#66CDAA). Click any swatch to copy its HEX. Use these as a starting point for design tokens, hover states, and disabled states in a design system.
50
#F3FBF8
#F3FBF8
100
#E7F7F1
#E7F7F1
200
#CEEFE4
#CEEFE4
300
#B3E6D5
#B3E6D5
400
#8CDABF
#8CDABF
500
#66CDAA
#66CDAA
600
#57AE91
#57AE91
700
#42856F
#42856F
800
#2E5C4D
#2E5C4D
900
#1A332B
#1A332B
950
#0C1914
#0C1914
Lighter tints (mixed with white)
15%
#8CD6BA
30%
#A8DEC9
45%
#BFE5D6
60%
#D3EDE2
75%
#E5F4ED
Darker shades (mixed with black)
15%
#5EBF9E
30%
#56AF91
45%
#4C9D81
60%
#418770
75%
#336D59
Color harmonies for Mediumaquamarine
Classic color-theory harmonies derived from rotating the hue of Mediumaquamarine. Use these to build accent palettes, brand systems, and accessible UI color pairings.
Complementary
180° opposite — strongest contrast
#66CDAA
#66CDAA
#CD6588
#CD6588
Triadic
Three colors 120° apart
#66CDAA
#66CDAA
#AA65CD
#AA65CD
#CDAA65
#CDAA65
Analogous
Two neighbors ±30° on the wheel
#65CD76
#65CD76
#66CDAA
#66CDAA
#65BCCD
#65BCCD
Split-complementary
Base + two colors flanking its complement
#66CDAA
#66CDAA
#CD65BC
#CD65BC
#CD7665
#CD7665
Tetradic
Two complementary pairs
#66CDAA
#66CDAA
#6588CD
#6588CD
#CD6588
#CD6588
#CDAA65
#CDAA65
Square
Four colors evenly spaced 90° apart
#66CDAA
#66CDAA
#7665CD
#7665CD
#CD6588
#CD6588
#BCCD65
#BCCD65
Mediumaquamarine in every color space
Full conversion of Mediumaquamarine across the color spaces designers and developers actually use — including OKLCH (the perceptually-uniform space that powers Tailwind v4 and CSS Color Module Level 4) and HWB.
HEX
#66CDAA
RGB
rgb(102, 205, 170)
CMYK
cmyk(50%, 0%, 17%, 20%)
HSL
hsl(160, 51%, 60%)
HSV
hsv(160, 50%, 80%)
HWB
hwb(160 40% 20%)
CIE Lab
lab(75.7 -38.3 8.3)
OKLCH
oklch(77.7% 0.110 168.8)
XYZ (D65)
xyz(34.56, 49.39, 45.73)
Copy-ready code for Mediumaquamarine
Drop-in snippets for CSS, Tailwind, Sass, iOS Swift, and Android XML. Click the copy button on any snippet to put it on your clipboard.
CSS
color: #66CDAA;
background-color: #66CDAA;CSS variable
:root {
--color-mediumaquamarine: #66CDAA;
}Tailwind config
// tailwind.config.js
colors: {
'mediumaquamarine': '#66CDAA',
}Sass
$color-mediumaquamarine: #66CDAA;Swift UIColor
UIColor(red: 0.400, green: 0.804, blue: 0.667, alpha: 1.0)Android XML
<color name="mediumaquamarine">#66CDAA</color>Closest match in every color system
The nearest Mediumaquamarine equivalent in every other color system on this site, ranked by ΔE2000 perceptual distance. Useful when translating between design-system, web-standard, and industrial color references.
Closest in CSS Named Colors
Top 6 ΔE2000-closest entries within the same collection.
Closest Pantone matches
Top 6 ΔE2000-closest Pantone references. Cross-system matching is approximate — see disclaimer.
Closest RAL Classic matches
Top 6 ΔE2000-closest RAL Classic references for industrial coating cross-reference.
RAL 6027
#84C3BE
Light green
RAL 6019
#BDECB6
Pastel green
RAL 6021
#89AC76
Pale green
RAL 5024
#5D9B9B
Pastel blue
RAL 6018
#57A639
Yellow green
RAL 7032
#B8B799
Pebble grey
FAQ about Mediumaquamarine
What is the HEX code for Mediumaquamarine?
Mediumaquamarine (mediumaquamarine) has the HEX code #66CDAA. In RGB it is rgb(102, 205, 170), and in CMYK it is cmyk(50%, 0%, 17%, 20%).
What is the OKLCH value of Mediumaquamarine?
Mediumaquamarine converts to oklch(0.777 0.110 168.8). OKLCH is the perceptually uniform color space used by Tailwind v4 and CSS Color Module Level 4.
Is Mediumaquamarine accessible for body text?
Used as a background, Mediumaquamarine has a contrast ratio of 10.88:1 with black text and 1.93:1 with white text. WCAG 2.1 AA requires 4.5:1 for normal text. The current recommendation is to use black text and verify in real UI context.
What is the closest Pantone to Mediumaquamarine?
The closest Pantone reference to Mediumaquamarine by ΔE2000 perceptual distance is Pantone 3265 C (#00C7B1). Cross-system Pantone matching is approximate; for color-critical print work, verify with a physical Pantone guide.
What is the closest RAL color to Mediumaquamarine?
The closest RAL Classic reference to Mediumaquamarine by ΔE2000 distance is RAL 6027 (Light green, #84C3BE). RAL is a German industrial coating standard commonly used for paint, powder coat, and architectural specification.
What is the complementary color of Mediumaquamarine?
The complementary color (180° opposite on the HSL color wheel) of Mediumaquamarine is #CD6588. Use it for high-contrast accents, error states, or call-to-action pairings.
Data provenance & source
CSS Named Colors (CSS Color Module Level 4)
The 147 named colors defined by the W3C CSS Color Module Level 4 specification. Origin: VGA (16) + X11 (rest) + 'rebeccapurple'. Use as a reference for web color names that all browsers natively support. Names like 'crimson' or 'rebeccapurple' work as CSS values without any framework.
- Source type
- derived
- Confidence
- high
- License
- W3C permissive document license
- Last reviewed
- 2026-05-24
Workflow tags
CSS named colors are sRGB digital values defined for browsers. For print, convert to a process-appropriate color and proof against substrate.