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#66B79C Color

#66B79C is rgb(102, 183, 156) in RGB, hsl(160, 36%, 56%) in HSL, and about cmyk(44%, 0%, 15%, 28%) in CMYK. It has no registered color name of its own — the closest is Polished Pine (#5DA493), clearly related but distinguishable side by side at ΔE 8.73. Black text is the more readable choice on this background.

#66B79C
HEX#66B79C
RGBrgb(102, 183, 156)
HSLhsl(160, 36%, 56%)
HSVhsv(160, 44%, 72%)
CMYKcmyk(44%, 0%, 15%, 28%)
OKLCHoklch(72% 0.09 170.1)
LABlab(68.69% -30.88 5.66)
LCHlch(68.69% 31.39 169.62)

What #66B79C 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 #66B79C, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Polished Pine#5DA493ΔE 8.73Green Sheen#6EAEA1ΔE 9.48Zomp#39A78EΔE 9.48Keppel#3AB09EΔE 9.85Medium Aquamarine#66CDAAΔE 9.95Pearl Aqua#88D8C0ΔE 12.2

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

#66B79C Channel Values

How #66B79C 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 183 · B 1568-bit channels as sent to the display
HSLH 160° · S 36% · L 56%Easiest model for building lighter and darker variants
HSVH 160° · S 44% · V 72%Matches the picker in most design tools
CMYKC 44% · M 0% · Y 15% · K 28%Approximate ink mix; confirm with an ICC profile before printing
Luminance2.38:1 vs white · 8.82:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #66B79C 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 text2.38:1AA normal AA large AAA normal
TextBlack text8.82:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #66B79C in the contrast checker.

Colors That Go With #66B79C

Pairings derived from color-wheel relationships. The complementary color sits opposite #66B79C; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#66B79C
Complementary
#B76681
Analogous
#66B774
Analogous
#66AAB7
Triadic
#9C66B7
Triadic
#B79C66
Split comp.
#B766AA
Split comp.
#B77466

Tints & Shades of #66B79C

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

#7BC1AA
#90CBB7
#A5D5C5
#BADED2
#CEE8E0
#E3F2ED

Shades

#50AA8C
#438E75
#377661
#2A5A4A
#1F4236
#12261F

Want a full 50-950 ramp with semantic roles? Generate design tokens from #66B79C.

How #66B79C 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#66B79C
Protanopia#ADAD9C
Protanomaly#95B19C
Deuteranopia#A2A29E
Deuteranomaly#8EAB9D
Tritanopia#6CB4B4
Tritanomaly#6AB5AB
Achromatopsia#A8A8A8

Test a full palette in the color blindness simulator.

Using #66B79C in Code

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

CSS custom property--color-66b79c: #66B79C;
CSS backgroundbackground-color: #66B79C;
Tailwind configcolors: { 'color-66b79c': '#66B79C' }
SwiftUIColor(red: 0.400, green: 0.718, blue: 0.612)
Android XML<color name="color_66b79c">#66B79C</color>
SVG fillfill="#66B79C"

More Green Colors

#66B79C sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.

000200fdfff5001f00f7fee7002400f7fbf5002c22f5fffa002e00f5fff5003300f0fff000800000db870d542b20483f33cc6646c3995ea50072863991e0b7a3f5d8bcd7bcd1ffed

#66B79C Frequently Asked Questions

What color is #66B79C?

#66B79C is a mid-tone green — rgb(102, 183, 156) in RGB and hsl(160, 36%, 56%) in HSL. It carries no registered color name of its own; the closest named color is Polished Pine (#5DA493), which is clearly related but distinguishable side by side at a CIE76 distance of 8.73.

What is the RGB value of #66B79C?

#66B79C is rgb(102, 183, 156) — red 102, green 183, and blue 156 on the 0-255 scale.

What is the CMYK value of #66B79C?

#66B79C converts to approximately cmyk(44%, 0%, 15%, 28%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #66B79C be black or white?

Black text is the more readable choice. #66B79C scores 2.38:1 against white and 8.82:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #66B79C as a CSS color keyword?

No. #66B79C 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 9.95, which is clearly related but distinguishable side by side.

Open #66B79C 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.