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#66C2AB Color

#66C2AB is rgb(102, 194, 171) in RGB, hsl(165, 43%, 58%) in HSL, and about cmyk(47%, 0%, 12%, 24%) in CMYK. It has no registered color name of its own — the closest is Medium Aquamarine (#66CDAA), clearly related but distinguishable side by side at ΔE 7.74. Black text is the more readable choice on this background.

#66C2AB
HEX#66C2AB
RGBrgb(102, 194, 171)
HSLhsl(165, 43%, 58%)
HSVhsv(165, 47%, 76%)
CMYKcmyk(47%, 0%, 12%, 24%)
OKLCHoklch(75.1% 0.095 175.3)
LABlab(72.29% -32.98 2.67)
LCHlch(72.29% 33.09 175.37)

What #66C2AB Is Called

Most hex codes have no name: there are 16.7 million of them and a few thousand registered names. These are the named colors nearest to #66C2AB, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Medium Aquamarine#66CDAAΔE 7.74Pearl Aqua#88D8C0ΔE 9.07Keppel#3AB09EΔE 9.13Zomp#39A78EΔE 11.21Green Sheen#6EAEA1ΔE 11.29Verdigris#43B3AEΔE 11.55

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

#66C2AB Channel Values

How #66C2AB breaks down in each color model. Hue is measured in degrees around the color wheel; saturation, lightness, and the CMYK inks are percentages.

ModelChannelsNotes
RGBR 102 · G 194 · B 1718-bit channels as sent to the display
HSLH 165° · S 43% · L 58%Easiest model for building lighter and darker variants
HSVH 165° · S 47% · V 76%Matches the picker in most design tools
CMYKC 47% · M 0% · Y 12% · K 24%Approximate ink mix; confirm with an ICC profile before printing
Luminance2.13:1 vs white · 9.87:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #66C2AB 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 text2.13:1AA normal AA large AAA normal
TextBlack text9.87:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #66C2AB in the contrast checker.

Colors That Go With #66C2AB

Pairings derived from color-wheel relationships. The complementary color sits opposite #66C2AB; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#66C2AB
Complementary
#C2667D
Analogous
#66C27D
Analogous
#66ABC2
Triadic
#AB66C2
Triadic
#C2AB66
Split comp.
#C266AB
Split comp.
#C27D66

Tints & Shades of #66C2AB

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

#7CCBB7
#8ED2C1
#A4DBCD
#BAE3D9
#D0ECE5
#E2F3EF

Shades

#49B69B
#3F9D85
#33806C
#276254
#1C453B
#112C25

Want a full 50-950 ramp with semantic roles? Generate design tokens from #66C2AB.

How #66C2AB 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#66C2AB
Protanopia#B6B6AB
Protanomaly#9DBBAB
Deuteranopia#ABABAD
Deuteranomaly#94B4AC
Tritanopia#6CBFBF
Tritanomaly#6AC0B8
Achromatopsia#B2B2B2

Test a full palette in the color blindness simulator.

Using #66C2AB in Code

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

CSS custom property--color-66c2ab: #66C2AB;
CSS backgroundbackground-color: #66C2AB;
Tailwind configcolors: { 'color-66c2ab': '#66C2AB' }
SwiftUIColor(red: 0.400, green: 0.761, blue: 0.671)
Android XML<color name="color_66c2ab">#66C2AB</color>
SVG fillfill="#66C2AB"

More Green Colors

#66C2AB sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.

000200fdfff5001f00f7fee7002400f7fbf5002c22f5fffa002e00f5fff5003300f0fff000800000db870d542b20483f33cc6646c3995ea50072863991e0b7a3f5d8bcd7bcd1ffed

#66C2AB Frequently Asked Questions

What color is #66C2AB?

#66C2AB is a mid-tone green — rgb(102, 194, 171) in RGB and hsl(165, 43%, 58%) in HSL. It carries no registered color name of its own; the closest named color is Medium Aquamarine (#66CDAA), which is clearly related but distinguishable side by side at a CIE76 distance of 7.74.

What is the RGB value of #66C2AB?

#66C2AB is rgb(102, 194, 171) — red 102, green 194, and blue 171 on the 0-255 scale.

What is the CMYK value of #66C2AB?

#66C2AB converts to approximately cmyk(47%, 0%, 12%, 24%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #66C2AB be black or white?

Black text is the more readable choice. #66C2AB scores 2.13:1 against white and 9.87:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #66C2AB as a CSS color keyword?

No. #66C2AB is not one of the CSS color keywords, so it has to be written as a hex, rgb() or hsl() value. The closest keyword is mediumaquamarine (#66CDAA) at a CIE76 distance of 7.74, which is clearly related but distinguishable side by side.

Open #66C2AB in a Tool

Hex to RGBHex to HSLHex to CMYKHex to OKLCHHex to PantoneBuild a paletteMake a gradient

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