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#66DB89 Color

#66DB89 is rgb(102, 219, 137) in RGB, hsl(138, 62%, 63%) in HSL, and about cmyk(53%, 0%, 37%, 14%) in CMYK. It has no registered color name of its own — the closest is Emerald (#50C878), clearly related but distinguishable side by side at ΔE 6.76. Black text is the more readable choice on this background.

#66DB89
HEX#66DB89
RGBrgb(102, 219, 137)
HSLhsl(138, 62%, 63%)
HSVhsv(138, 53%, 86%)
CMYKcmyk(53%, 0%, 37%, 14%)
OKLCHoklch(80.3% 0.158 151.1)
LABlab(79.19% -48.09 29.92)
LCHlch(79.19% 56.64 148.11)

What #66DB89 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 #66DB89, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Emerald#50C878ΔE 6.76Android Green#3DDC84ΔE 9.15Very Light Malachite Green#64E986ΔE 9.82Pastel Green#77DD77ΔE 10.52Light Green#90EE90ΔE 11.07Pale Green#98FB98ΔE 14.49

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

#66DB89 Channel Values

How #66DB89 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 219 · B 1378-bit channels as sent to the display
HSLH 138° · S 62% · L 63%Easiest model for building lighter and darker variants
HSVH 138° · S 53% · V 86%Matches the picker in most design tools
CMYKC 53% · M 0% · Y 37% · K 14%Approximate ink mix; confirm with an ICC profile before printing
Luminance1.74:1 vs white · 12.06:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #66DB89 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 text12.06:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #66DB89 in the contrast checker.

Colors That Go With #66DB89

Pairings derived from color-wheel relationships. The complementary color sits opposite #66DB89; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#66DB89
Complementary
#DB66B8
Analogous
#7EDB66
Analogous
#66DBC4
Triadic
#8966DB
Triadic
#DB8966
Split comp.
#C466DB
Split comp.
#DB667E

Tints & Shades of #66DB89

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

#7BE099
#8FE5A9
#A4EAB9
#B9EFC9
#CDF3D9
#E2F8E9

Shades

#45D370
#2DBE58
#259D49
#1C7838
#145728
#0C3217

Want a full 50-950 ramp with semantic roles? Generate design tokens from #66DB89.

How #66DB89 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#66DB89
Protanopia#CDCD8A
Protanomaly#ADD389
Deuteranopia#BFBF8D
Deuteranomaly#A3CB8B
Tritanopia#79D3D3
Tritanomaly#72D6BA
Achromatopsia#C4C4C4

Test a full palette in the color blindness simulator.

Using #66DB89 in Code

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

CSS custom property--color-66db89: #66DB89;
CSS backgroundbackground-color: #66DB89;
Tailwind configcolors: { 'color-66db89': '#66DB89' }
SwiftUIColor(red: 0.400, green: 0.859, blue: 0.537)
Android XML<color name="color_66db89">#66DB89</color>
SVG fillfill="#66DB89"

More Green Colors

#66DB89 sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.

000200fdfff5001f00f7fee7002400f7fbf5002c22f5fffa002e00f5fff5003300f0fff000800000db870d542b20483f33cc6646c3995ea50072863991e0b7a3f5d8bcd7bcd1ffed

#66DB89 Frequently Asked Questions

What color is #66DB89?

#66DB89 is a light green — rgb(102, 219, 137) in RGB and hsl(138, 62%, 63%) in HSL. It carries no registered color name of its own; the closest named color is Emerald (#50C878), which is clearly related but distinguishable side by side at a CIE76 distance of 6.76.

What is the RGB value of #66DB89?

#66DB89 is rgb(102, 219, 137) — red 102, green 219, and blue 137 on the 0-255 scale.

What is the CMYK value of #66DB89?

#66DB89 converts to approximately cmyk(53%, 0%, 37%, 14%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #66DB89 be black or white?

Black text is the more readable choice. #66DB89 scores 1.74:1 against white and 12.06:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #66DB89 as a CSS color keyword?

No. #66DB89 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 lightgreen (#90EE90) at a CIE76 distance of 11.07, which is visibly different.

Open #66DB89 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.