Screamin' Green (#66FF66)

The hex code for Screamin' Green is #66FF66. It is rgb(102, 255, 102) in RGB, hsl(120, 100%, 70%) in HSL, and about cmyk(60%, 0%, 60%, 0%) in CMYK — a light green. Black text is the more readable choice on this background.

#66FF66

HEX#66FF66

RGBrgb(102, 255, 102)

HSLhsl(120, 100%, 70%)

HSVhsv(120, 60%, 100%)

CMYKcmyk(60%, 0%, 60%, 0%)

OKLCHoklch(88.7% 0.234 143.3)

LABlab(89.60% -63.92 58.67)

LCHlch(89.60% 86.76 137.45)

Colors Closest to Screamin' Green

Screamin' Green 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.

SGBUS Green#55DD33ΔE 13.63 Malachite#0BDA51ΔE 14.69 Spring Green#00FF7FΔE 15.37 Lime Green#32CD32ΔE 17.11 Vivid Malachite#00CC33ΔE 17.79 Erin#00FF40ΔE 17.98

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

#66FF66 Channel Values

How Screamin' Green 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 255 · B 102	8-bit channels as sent to the display
HSL	H 120° · S 100% · L 70%	Easiest model for building lighter and darker variants
HSV	H 120° · S 60% · V 100%	Matches the picker in most design tools
CMYK	C 60% · M 0% · Y 60% · K 0%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	1.31:1 vs white · 16.06:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a Screamin' Green 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 text1.31:1AA normal AA large AAA normal

TextBlack text16.06:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #66FF66 in the contrast checker.

Colors That Go With Screamin' Green

Pairings derived from color-wheel relationships. The complementary color sits opposite Screamin' Green; 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 Screamin' Green

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 #66FF66.

How Screamin' Green 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#66FF66

Protanopia#EEEE67

Protanomaly#C6F567

Deuteranopia#DCDC6E

Deuteranomaly#B8EB6B

Tritanopia#87F2F2

Tritanomaly#7BF8CA

Achromatopsia#E1E1E1

Test a full palette in the color blindness simulator.

Using #66FF66 in Code

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

CSS custom property--screamin-green: #66FF66;

CSS backgroundbackground-color: #66FF66;

Tailwind configcolors: { 'screamin-green': '#66FF66' }

SwiftUIColor(red: 0.400, green: 1.000, blue: 0.400)

Android XML<color name="screamin_green">#66FF66</color>

SVG fillfill="#66FF66"

More Green Colors

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

66ff99 66ff33 66ffc4 66ff00 66ffcc 66cdaa 679267 66cc99 6b8e23 66cc66 6bb300 66cc33 88d8c0 9ae600 b0bf1a ccff33 e4f6f0 005200 009f6b 014421 179617 29ff94 38e038 4dffc3

#66FF66 Frequently Asked Questions

What is the hex code for Screamin' Green?

The hex code for Screamin' Green is #66FF66. That is rgb(102, 255, 102) in RGB, hsl(120, 100%, 70%) in HSL, and approximately cmyk(60%, 0%, 60%, 0%) in CMYK.

What is the RGB value of #66FF66?

#66FF66 is rgb(102, 255, 102) — red 102, green 255, and blue 102 on the 0-255 scale.

What is the CMYK value of #66FF66?

#66FF66 converts to approximately cmyk(60%, 0%, 60%, 0%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #66FF66 be black or white?

Black text is the more readable choice. #66FF66 scores 1.31:1 against white and 16.06:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #66FF66 as a CSS color keyword?

No. #66FF66 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 springgreen (#00FF7F) at a CIE76 distance of 15.37, which is visibly different.

Open Screamin' Green 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.