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#66D6CF Color

#66D6CF is rgb(102, 214, 207) in RGB, hsl(176, 58%, 62%) in HSL, and about cmyk(52%, 0%, 3%, 16%) in CMYK. It has no registered color name of its own — the closest is Medium Turquoise (#48D1CC), clearly related but distinguishable side by side at ΔE 5.28. Black text is the more readable choice on this background.

#66D6CF
HEX#66D6CF
RGBrgb(102, 214, 207)
HSLhsl(176, 58%, 62%)
HSVhsv(176, 52%, 84%)
CMYKcmyk(52%, 0%, 3%, 16%)
OKLCHoklch(80.9% 0.103 189.8)
LABlab(79.01% -34.71 -6.86)
LCHlch(79.01% 35.38 191.17)

What #66D6CF 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 #66D6CF, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Medium Turquoise#48D1CCΔE 5.28Middle Blue Green#8DD9CCΔE 9.97Maximum Blue Green#30BFBFΔE 10.23Turquoise#40E0D0ΔE 10.83Robin Egg Blue#00CCCCΔE 11.08Dark Turquoise#00CED1ΔE 11.44

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

#66D6CF Channel Values

How #66D6CF 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 214 · B 2078-bit channels as sent to the display
HSLH 176° · S 58% · L 62%Easiest model for building lighter and darker variants
HSVH 176° · S 52% · V 84%Matches the picker in most design tools
CMYKC 52% · M 0% · Y 3% · K 16%Approximate ink mix; confirm with an ICC profile before printing
Luminance1.74:1 vs white · 12.08:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #66D6CF 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 text1.74:1AA normal AA large AAA normal
TextBlack text12.08:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #66D6CF in the contrast checker.

Colors That Go With #66D6CF

Pairings derived from color-wheel relationships. The complementary color sits opposite #66D6CF; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#66D6CF
Complementary
#D6666D
Analogous
#66D697
Analogous
#66A6D6
Triadic
#CF66D6
Triadic
#D6CF66
Split comp.
#D666A6
Split comp.
#D69766

Tints & Shades of #66D6CF

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

#7ADCD5
#8EE1DB
#A2E6E2
#BBEDE9
#CFF2F0
#E3F8F6

Shades

#46CEC5
#30B5AC
#28958E
#1F756F
#165550
#0D302E

Want a full 50-950 ramp with semantic roles? Generate design tokens from #66D6CF.

How #66D6CF 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#66D6CF
Protanopia#C8C8CF
Protanomaly#AACECF
Deuteranopia#BBBBD1
Deuteranomaly#A0C6D0
Tritanopia#68D5D5
Tritanomaly#67D5D3
Achromatopsia#C4C4C4

Test a full palette in the color blindness simulator.

Using #66D6CF in Code

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

CSS custom property--color-66d6cf: #66D6CF;
CSS backgroundbackground-color: #66D6CF;
Tailwind configcolors: { 'color-66d6cf': '#66D6CF' }
SwiftUIColor(red: 0.400, green: 0.839, blue: 0.812)
Android XML<color name="color_66d6cf">#66D6CF</color>
SVG fillfill="#66D6CF"

More Teal Colors

#66D6CF sits in the teal family. These are its neighbours across that family's full range, each with its own breakdown.

002424f5ffff002a38f0ffff002d2eeefbfb003333ecfeff003542ecf7f9003838ebffff00646600999900ebeb0d161619292924fbff36747d50bfe673a9c28dd9ccaec6cfccffff

#66D6CF Frequently Asked Questions

What color is #66D6CF?

#66D6CF is a light teal — rgb(102, 214, 207) in RGB and hsl(176, 58%, 62%) in HSL. It carries no registered color name of its own; the closest named color is Medium Turquoise (#48D1CC), which is clearly related but distinguishable side by side at a CIE76 distance of 5.28.

What is the RGB value of #66D6CF?

#66D6CF is rgb(102, 214, 207) — red 102, green 214, and blue 207 on the 0-255 scale.

What is the CMYK value of #66D6CF?

#66D6CF converts to approximately cmyk(52%, 0%, 3%, 16%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #66D6CF be black or white?

Black text is the more readable choice. #66D6CF scores 1.74:1 against white and 12.08:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #66D6CF as a CSS color keyword?

No. #66D6CF 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 mediumturquoise (#48D1CC) at a CIE76 distance of 5.28, which is clearly related but distinguishable side by side.

Open #66D6CF in a Tool

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

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