Green (RYB) (#66B032)

The hex code for Green (RYB) is #66B032. It is rgb(102, 176, 50) in RGB, hsl(95, 56%, 44%) in HSL, and about cmyk(42%, 0%, 72%, 31%) in CMYK — a mid-tone green. Black text is the more readable choice on this background.

#66B032

HEX#66B032

RGBrgb(102, 176, 50)

HSLhsl(95, 56%, 44%)

HSVhsv(95, 72%, 69%)

CMYKcmyk(42%, 0%, 72%, 31%)

OKLCHoklch(68.4% 0.174 135.2)

LABlab(65.18% -39.96 53.45)

LCHlch(65.18% 66.74 126.78)

Colors Closest to Green (RYB)

Green (RYB) is a registered color name. These are the named colors nearest to it, measured as CIE76 distance in CIELAB — a perceptual scale, so the ordering matches what the eye sees rather than how close the raw RGB numbers happen to sit.

Vine Green#38A32AΔE 11.11 Slimy Green#299617ΔE 13.86 Microsoft Green#7DB700ΔE 15.03 Kelly Green#4CBB17ΔE 15.7 Mantis#74C365ΔE 16.04 Yellow Green#9ACD32ΔE 18.15

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

#66B032 Channel Values

How Green (RYB) breaks down in each color model. Hue is measured in degrees around the color wheel; saturation, lightness, and the CMYK inks are percentages.

Model	Channels	Notes
RGB	R 102 · G 176 · B 50	8-bit channels as sent to the display
HSL	H 95° · S 56% · L 44%	Easiest model for building lighter and darker variants
HSV	H 95° · S 72% · V 69%	Matches the picker in most design tools
CMYK	C 42% · M 0% · Y 72% · K 31%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	2.69:1 vs white · 7.82:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a Green (RYB) 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.

TextWhite text2.69:1AA normal ✗AA large ✗AAA normal ✗

TextBlack text7.82:1AA normal ✓AA large ✓AAA normal ✓

Need a specific ratio against another background? Open #66B032 in the contrast checker.

Colors That Go With Green (RYB)

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

Base

Complementary

Analogous

Analogous

Triadic

Triadic

Split comp.

Split comp.

Tints & Shades of Green (RYB)

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

Shades

Want a full 50-950 ramp with semantic roles? Generate design tokens from #66B032.

How Green (RYB) 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#66B032

Protanopia#A6A633

Protanomaly#91AA33

Deuteranopia#9C9C39

Deuteranomaly#8AA536

Tritanopia#77A6A6

Tritanomaly#71AA87

Achromatopsia#9E9E9E

Test a full palette in the color blindness simulator.

Using #66B032 in Code

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

CSS custom property--green-ryb: #66B032;

CSS backgroundbackground-color: #66B032;

Tailwind configcolors: { 'green-ryb': '#66B032' }

SwiftUIColor(red: 0.400, green: 0.690, blue: 0.196)

Android XML<color name="green_ryb">#66B032</color>

SVG fillfill="#66B032"

More Green Colors

Green (RYB) sits in the greenfamily. These are its neighbours across that family's full range, each with its own breakdown.

66cc00 669966 66cc33 669933 66cc66 669900 66cc99 65e765 66cdaa 64e986 66ff00 62f962 7fffd4 99e6b3 ace1af c5e384 ddf4e7 00381c 00994d 00ff40 143d27 28350d 35431e 4c9141

#66B032 Frequently Asked Questions

What is the hex code for Green (RYB)?

The hex code for Green (RYB) is #66B032. That is rgb(102, 176, 50) in RGB, hsl(95, 56%, 44%) in HSL, and approximately cmyk(42%, 0%, 72%, 31%) in CMYK.

What is the RGB value of #66B032?

#66B032 is rgb(102, 176, 50) — red 102, green 176, and blue 50 on the 0-255 scale.

What is the CMYK value of #66B032?

#66B032 converts to approximately cmyk(42%, 0%, 72%, 31%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #66B032 be black or white?

Black text is the more readable choice. #66B032 scores 2.69:1 against white and 7.82:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #66B032 as a CSS color keyword?

No. #66B032 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 yellowgreen (#9ACD32) at a CIE76 distance of 18.15, which is visibly different.

Open Green (RYB) in a Tool

Hex to RGB Hex to HSL Hex to CMYK Hex to OKLCH Hex to Pantone Build a palette Make a gradient

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