Medium Aquamarine (#66CDAA)

The hex code for Medium Aquamarine is #66CDAA. It is rgb(102, 205, 170) in RGB, hsl(160, 51%, 60%) in HSL, and about cmyk(50%, 0%, 17%, 20%) in CMYK — a light green. Black text is the more readable choice on this background.

#66CDAA

HEX#66CDAA

RGBrgb(102, 205, 170)

HSLhsl(160, 51%, 60%)

HSVhsv(160, 50%, 80%)

CMYKcmyk(50%, 0%, 17%, 20%)

OKLCHoklch(77.7% 0.11 168.8)

LABlab(75.55% -37.75 7.83)

LCHlch(75.55% 38.56 168.28)

Colors Closest to Medium Aquamarine

Medium Aquamarine is a registered color name. These are the named colors nearest to it, measured as CIE76 distance in CIELAB — a perceptual scale, so the ordering matches what the eye sees rather than how close the raw RGB numbers happen to sit.

Pearl Aqua#88D8C0ΔE 10.4 Zeal#91E0B7ΔE 10.54 Mountain Meadow#30BA8FΔE 11.53 Eucalyptus#44D7A8ΔE 11.78 Seafoam#93E9BEΔE 11.97 Keppel#3AB09EΔE 13.62

Browse the full index of named colors A-Z or every green in the library.

#66CDAA Channel Values

How Medium Aquamarine breaks down in each color model. Hue is measured in degrees around the color wheel; saturation, lightness, and the CMYK inks are percentages.

Model	Channels	Notes
RGB	R 102 · G 205 · B 170	8-bit channels as sent to the display
HSL	H 160° · S 51% · L 60%	Easiest model for building lighter and darker variants
HSV	H 160° · S 50% · V 80%	Matches the picker in most design tools
CMYK	C 50% · M 0% · Y 17% · K 20%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	1.93:1 vs white · 10.88:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a Medium Aquamarine background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1. Contrast is one check, not a full accessibility review.

Fails AAWhite text1.93:1AA normal AA large AAA normal

TextBlack text10.88:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #66CDAA in the contrast checker.

Colors That Go With Medium Aquamarine

Pairings derived from color-wheel relationships. The complementary color sits opposite Medium Aquamarine; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base

Complementary

Analogous

Analogous

Triadic

Triadic

Split comp.

Split comp.

Tints & Shades of Medium Aquamarine

Lighter tints and darker shades built by moving the lightness channel while holding hue and saturation, which is what you want for hover states, backgrounds, and text variants.

Tints

Shades

Want a full 50-950 ramp with semantic roles? Generate design tokens from #66CDAA.

How Medium Aquamarine Looks with Color Vision Deficiency

Simulated with the Viénot, Brettel & Mollon LMS projection model. Anomalous types are rendered as partial versions of the matching dichromacy, which is an approximation rather than a per-person clinical model.

Typical#66CDAA

Protanopia#C0C0AA

Protanomaly#A4C6AA

Deuteranopia#B3B3AD

Deuteranomaly#9ABEAC

Tritanopia#6FC9C9

Tritanomaly#6CCBBD

Achromatopsia#BABABA

Test a full palette in the color blindness simulator.

Using #66CDAA in Code

Copy-ready declarations for the places this color usually ends up.

CSS custom property--medium-aquamarine: #66CDAA;

CSS backgroundbackground-color: #66CDAA;

Tailwind configcolors: { 'medium-aquamarine': '#66CDAA' }

SwiftUIColor(red: 0.400, green: 0.804, blue: 0.667)

Android XML<color name="medium_aquamarine">#66CDAA</color>

SVG fillfill="#66CDAA"

More Green Colors

Medium Aquamarine sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.

66ff00 66cc99 66ff33 66cc66 66ff66 66cc33 66ff99 66cc00 66ffc4 66b032 66ffcc 669966 87b42d 99ffcc adffad cbfbf1 e3f988 004730 009e00 00ffbf 17452b 296e01 355e3b 4d8c57

#66CDAA Frequently Asked Questions

What is the hex code for Medium Aquamarine?

The hex code for Medium Aquamarine is #66CDAA. That is rgb(102, 205, 170) in RGB, hsl(160, 51%, 60%) in HSL, and approximately cmyk(50%, 0%, 17%, 20%) in CMYK.

What is the RGB value of #66CDAA?

#66CDAA is rgb(102, 205, 170) — red 102, green 205, and blue 170 on the 0-255 scale.

What is the CMYK value of #66CDAA?

#66CDAA converts to approximately cmyk(50%, 0%, 17%, 20%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #66CDAA be black or white?

Black text is the more readable choice. #66CDAA scores 1.93:1 against white and 10.88:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Is MediumAquamarine a CSS named color?

Yes. MediumAquamarine is one of the CSS named colors, so you can write color: mediumaquamarine instead of the hex code.

Open Medium Aquamarine in a Tool

Hex to RGB Hex to HSL Hex to CMYK Hex to OKLCH Hex to Pantone Build a palette Make a gradient

Keep exploring: every green in the color library, the guide to shades of green, or the full color library.