#99FF33 Color

#99FF33 is rgb(153, 255, 51) in RGB, hsl(90, 100%, 60%) in HSL, and about cmyk(40%, 0%, 80%, 0%) in CMYK. It has no registered color name of its own — the closest is French Lime (#9EFD38), very hard to tell apart at ΔE 2.91. Black text is the more readable choice on this background.

#99FF33

HEX#99FF33

RGBrgb(153, 255, 51)

HSLhsl(90, 100%, 60%)

HSVhsv(90, 80%, 100%)

CMYKcmyk(40%, 0%, 80%, 0%)

OKLCHoklch(90.3% 0.242 133.5)

LABlab(91.22% -52.91 78.21)

LCHlch(91.22% 94.43 124.08)

What #99FF33 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 #99FF33, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

French Lime#9EFD38ΔE 2.91 Spring Frost#87FF2AΔE 5.84 Green Yellow#ADFF2FΔE 6.95 Mango Green#96FF00ΔE 7.09 Spring Bud#A7FC00ΔE 8.77 Green Lizard#A7F432ΔE 9.23

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

#99FF33 Channel Values

How #99FF33 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 153 · G 255 · B 51	8-bit channels as sent to the display
HSL	H 90° · S 100% · L 60%	Easiest model for building lighter and darker variants
HSV	H 90° · S 80% · V 100%	Matches the picker in most design tools
CMYK	C 40% · M 0% · Y 80% · K 0%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	1.26:1 vs white · 16.71:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #99FF33 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 text1.26:1AA normal AA large AAA normal

TextBlack text16.71:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #99FF33 in the contrast checker.

Colors That Go With #99FF33

Pairings derived from color-wheel relationships. The complementary color sits opposite #99FF33; 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 #99FF33

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 #99FF33.

How #99FF33 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#99FF33

Protanopia#F2F235

Protanomaly#D4F734

Deuteranopia#E4E441

Deuteranomaly#CAEF3C

Tritanopia#B1F1F1

Tritanomaly#A8F7C2

Achromatopsia#E5E5E5

Test a full palette in the color blindness simulator.

Using #99FF33 in Code

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

CSS custom property--color-99ff33: #99FF33;

CSS backgroundbackground-color: #99FF33;

Tailwind configcolors: { 'color-99ff33': '#99FF33' }

SwiftUIColor(red: 0.600, green: 1.000, blue: 0.200)

Android XML<color name="color_99ff33">#99FF33</color>

SVG fillfill="#99FF33"

More Green Colors

#99FF33 sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.

99ff66 99ff00 99ff99 99e6b3 99ffcc 99cc99 9ab973 99cc66 9acd32 99cc33 9ae600 99cc00 addfad c9dc87 ddf719 004200 00995e 00ff66 143d27 28350d 354230 4b7c4b 65e765 7ccf00

#99FF33 Frequently Asked Questions

What color is #99FF33?

#99FF33 is a light green — rgb(153, 255, 51) in RGB and hsl(90, 100%, 60%) in HSL. It carries no registered color name of its own; the closest named color is French Lime (#9EFD38), which is very hard to tell apart at a CIE76 distance of 2.91.

What is the RGB value of #99FF33?

#99FF33 is rgb(153, 255, 51) — red 153, green 255, and blue 51 on the 0-255 scale.

What is the CMYK value of #99FF33?

#99FF33 converts to approximately cmyk(40%, 0%, 80%, 0%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #99FF33 be black or white?

Black text is the more readable choice. #99FF33 scores 1.26:1 against white and 16.71:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #99FF33 as a CSS color keyword?

No. #99FF33 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 greenyellow (#ADFF2F) at a CIE76 distance of 6.95, which is clearly related but distinguishable side by side.

Open #99FF33 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.