Skip to content

#66FA8B Color

#66FA8B is rgb(102, 250, 139) in RGB, hsl(135, 94%, 69%) in HSL, and about cmyk(59%, 0%, 44%, 2%) in CMYK. It has no registered color name of its own — the closest is Very Light Malachite Green (#64E986), clearly related but distinguishable side by side at ΔE 8.2. Black text is the more readable choice on this background.

#66FA8B
HEX#66FA8B
RGBrgb(102, 250, 139)
HSLhsl(135, 94%, 69%)
HSVhsv(135, 59%, 98%)
CMYKcmyk(59%, 0%, 44%, 2%)
OKLCHoklch(87.9% 0.198 148.9)
LABlab(88.47% -58.77 40.79)
LCHlch(88.47% 71.54 145.24)

What #66FA8B 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 #66FA8B, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Very Light Malachite Green#64E986ΔE 8.2Medium Spring Green#00FA9AΔE 12.84Mint#98FF98ΔE 12.93Android Green#3DDC84ΔE 14.18Pale Green#98FB98ΔE 14.4Spring Green#00FF7FΔE 14.68

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

#66FA8B Channel Values

How #66FA8B 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 250 · B 1398-bit channels as sent to the display
HSLH 135° · S 94% · L 69%Easiest model for building lighter and darker variants
HSVH 135° · S 59% · V 98%Matches the picker in most design tools
CMYKC 59% · M 0% · Y 44% · K 2%Approximate ink mix; confirm with an ICC profile before printing
Luminance1.35:1 vs white · 15.61:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #66FA8B 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 text1.35:1AA normal AA large AAA normal
TextBlack text15.61:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #66FA8B in the contrast checker.

Colors That Go With #66FA8B

Pairings derived from color-wheel relationships. The complementary color sits opposite #66FA8B; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#66FA8B
Complementary
#FA66D5
Analogous
#8BFA66
Analogous
#66FAD5
Triadic
#8B66FA
Triadic
#FA8B66
Split comp.
#D566FA
Split comp.
#FA668B

Tints & Shades of #66FA8B

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

#79FB9A
#8DFBA9
#A1FCB8
#BAFDCB
#CEFDDA
#E1FEE9

Shades

#39F969
#08F744
#06CB37
#059E2B
#04721F
#024012

Want a full 50-950 ramp with semantic roles? Generate design tokens from #66FA8B.

How #66FA8B 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#66FA8B
Protanopia#E9E98C
Protanomaly#C2F08C
Deuteranopia#D8D891
Deuteranomaly#B5E68E
Tritanopia#82F0F0
Tritanomaly#78F4CF
Achromatopsia#DEDEDE

Test a full palette in the color blindness simulator.

Using #66FA8B in Code

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

CSS custom property--color-66fa8b: #66FA8B;
CSS backgroundbackground-color: #66FA8B;
Tailwind configcolors: { 'color-66fa8b': '#66FA8B' }
SwiftUIColor(red: 0.400, green: 0.980, blue: 0.545)
Android XML<color name="color_66fa8b">#66FA8B</color>
SVG fillfill="#66FA8B"

More Green Colors

#66FA8B sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.

000200fdfff5001f00f7fee7002400f7fbf5002c22f5fffa002e00f5fff5003300f0fff000800000db870d542b20483f33cc6646c3995ea50072863991e0b7a3f5d8bcd7bcd1ffed

#66FA8B Frequently Asked Questions

What color is #66FA8B?

#66FA8B is a light green — rgb(102, 250, 139) in RGB and hsl(135, 94%, 69%) in HSL. It carries no registered color name of its own; the closest named color is Very Light Malachite Green (#64E986), which is clearly related but distinguishable side by side at a CIE76 distance of 8.2.

What is the RGB value of #66FA8B?

#66FA8B is rgb(102, 250, 139) — red 102, green 250, and blue 139 on the 0-255 scale.

What is the CMYK value of #66FA8B?

#66FA8B converts to approximately cmyk(59%, 0%, 44%, 2%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #66FA8B be black or white?

Black text is the more readable choice. #66FA8B scores 1.35:1 against white and 15.61:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #66FA8B as a CSS color keyword?

No. #66FA8B 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 mediumspringgreen (#00FA9A) at a CIE76 distance of 12.84, which is visibly different.

Open #66FA8B 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.