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#66D20F Color

#66D20F is rgb(102, 210, 15) in RGB, hsl(93, 87%, 44%) in HSL, and about cmyk(51%, 0%, 93%, 18%) in CMYK. It has no registered color name of its own — the closest is SGBUS Green (#55DD33), clearly related but distinguishable side by side at ΔE 9.11. Black text is the more readable choice on this background.

#66D20F
HEX#66D20F
RGBrgb(102, 210, 15)
HSLhsl(93, 87%, 44%)
HSVhsv(93, 93%, 82%)
CMYKcmyk(51%, 0%, 93%, 18%)
OKLCHoklch(76.9% 0.227 136.4)
LABlab(75.57% -53.33 70.91)
LCHlch(75.57% 88.73 126.95)

What #66D20F 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 #66D20F, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

SGBUS Green#55DD33ΔE 9.11Kelly Green#4CBB17ΔE 11.57Sheen Green#8FD400ΔE 13.31Lime Green#32CD32ΔE 14.1French Lime#9EFD38ΔE 16.66Green Lizard#A7F432ΔE 17.05

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

#66D20F Channel Values

How #66D20F 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 210 · B 158-bit channels as sent to the display
HSLH 93° · S 87% · L 44%Easiest model for building lighter and darker variants
HSVH 93° · S 93% · V 82%Matches the picker in most design tools
CMYKC 51% · M 0% · Y 93% · K 18%Approximate ink mix; confirm with an ICC profile before printing
Luminance1.95:1 vs white · 10.79:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #66D20F 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 text1.95:1AA normal AA large AAA normal
TextBlack text10.79:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #66D20F in the contrast checker.

Colors That Go With #66D20F

Pairings derived from color-wheel relationships. The complementary color sits opposite #66D20F; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#66D20F
Complementary
#7A0FD2
Analogous
#C8D20F
Analogous
#0FD218
Triadic
#0F66D2
Triadic
#D20F66
Split comp.
#180FD2
Split comp.
#D20FC8

Tints & Shades of #66D20F

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

#7AEF1A
#8DF13B
#A4F462
#BAF788
#D0F9AE
#E3FCCF

Shades

#58B50D
#4D9D0B
#3F8109
#316407
#234805
#173003

Want a full 50-950 ramp with semantic roles? Generate design tokens from #66D20F.

How #66D20F 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#66D20F
Protanopia#C5C514
Protanomaly#A7CA12
Deuteranopia#B7B726
Deuteranomaly#9DC31E
Tritanopia#80C6C6
Tritanomaly#76CB9E
Achromatopsia#BABABA

Test a full palette in the color blindness simulator.

Using #66D20F in Code

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

CSS custom property--color-66d20f: #66D20F;
CSS backgroundbackground-color: #66D20F;
Tailwind configcolors: { 'color-66d20f': '#66D20F' }
SwiftUIColor(red: 0.400, green: 0.824, blue: 0.059)
Android XML<color name="color_66d20f">#66D20F</color>
SVG fillfill="#66D20F"

More Green Colors

#66D20F sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.

000200fdfff5001f00f7fee7002400f7fbf5002c22f5fffa002e00f5fff5003300f0fff000800000db870d542b20483f33cc6646c3995ea50072863991e0b7a3f5d8bcd7bcd1ffed

#66D20F Frequently Asked Questions

What color is #66D20F?

#66D20F is a mid-tone green — rgb(102, 210, 15) in RGB and hsl(93, 87%, 44%) in HSL. It carries no registered color name of its own; the closest named color is SGBUS Green (#55DD33), which is clearly related but distinguishable side by side at a CIE76 distance of 9.11.

What is the RGB value of #66D20F?

#66D20F is rgb(102, 210, 15) — red 102, green 210, and blue 15 on the 0-255 scale.

What is the CMYK value of #66D20F?

#66D20F converts to approximately cmyk(51%, 0%, 93%, 18%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #66D20F be black or white?

Black text is the more readable choice. #66D20F scores 1.95:1 against white and 10.79:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #66D20F as a CSS color keyword?

No. #66D20F 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 limegreen (#32CD32) at a CIE76 distance of 14.1, which is visibly different.

Open #66D20F 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.