Skip to content

#99FF0A Color

#99FF0A is rgb(153, 255, 10) in RGB, hsl(85, 100%, 52%) in HSL, and about cmyk(40%, 0%, 96%, 0%) in CMYK. It has no registered color name of its own — the closest is Mango Green (#96FF00), below the threshold most people can see at ΔE 1.16. Black text is the more readable choice on this background.

#99FF0A
HEX#99FF0A
RGBrgb(153, 255, 10)
HSLhsl(85, 100%, 52%)
HSVhsv(85, 96%, 100%)
CMYKcmyk(40%, 0%, 96%, 0%)
OKLCHoklch(90.2% 0.252 132.7)
LABlab(91.14% -53.67 84.55)
LCHlch(91.14% 100.15 122.41)

What #99FF0A 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 #99FF0A, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Mango Green#96FF00ΔE 1.16Spring Bud#A7FC00ΔE 5.74Spring Frost#87FF2AΔE 7.32Chartreuse#7FFF00ΔE 7.92Lawn Green#7CFC00ΔE 8.08Green Yellow#ADFF2FΔE 8.4

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

#99FF0A Channel Values

How #99FF0A 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 153 · G 255 · B 108-bit channels as sent to the display
HSLH 85° · S 100% · L 52%Easiest model for building lighter and darker variants
HSVH 85° · S 96% · V 100%Matches the picker in most design tools
CMYKC 40% · M 0% · Y 96% · K 0%Approximate ink mix; confirm with an ICC profile before printing
Luminance1.26:1 vs white · 16.66:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #99FF0A 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 text16.66:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #99FF0A in the contrast checker.

Colors That Go With #99FF0A

Pairings derived from color-wheel relationships. The complementary color sits opposite #99FF0A; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#99FF0A
Complementary
#700AFF
Analogous
#FFEB0A
Analogous
#1FFF0A
Triadic
#0A99FF
Triadic
#FF0A99
Split comp.
#0A1FFF
Split comp.
#EB0AFF

Tints & Shades of #99FF0A

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

#A8FF2E
#B5FF4D
#C3FF70
#D0FF8F
#DFFFB3
#ECFFD1

Shades

#86E600
#71C200
#5C9E00
#4A8000
#365C00
#213800

Want a full 50-950 ramp with semantic roles? Generate design tokens from #99FF0A.

How #99FF0A 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#99FF0A
Protanopia#F2F212
Protanomaly#D4F70F
Deuteranopia#E4E429
Deuteranomaly#CAEF20
Tritanopia#B2F0F0
Tritanomaly#A9F6C0
Achromatopsia#E5E5E5

Test a full palette in the color blindness simulator.

Using #99FF0A in Code

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

CSS custom property--color-99ff0a: #99FF0A;
CSS backgroundbackground-color: #99FF0A;
Tailwind configcolors: { 'color-99ff0a': '#99FF0A' }
SwiftUIColor(red: 0.600, green: 1.000, blue: 0.039)
Android XML<color name="color_99ff0a">#99FF0A</color>
SVG fillfill="#99FF0A"

More Green Colors

#99FF0A sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.

000200fdfff5001f00f7fee7002400f7fbf5002c22f5fffa002e00f5fff5003300f0fff000800000db870d542b20483f33cc6646c3995ea50072863991e0b7a3f5d8bcd7bcd1ffed

#99FF0A Frequently Asked Questions

What color is #99FF0A?

#99FF0A is a mid-tone green — rgb(153, 255, 10) in RGB and hsl(85, 100%, 52%) in HSL. It carries no registered color name of its own; the closest named color is Mango Green (#96FF00), which is below the threshold most people can see at a CIE76 distance of 1.16.

What is the RGB value of #99FF0A?

#99FF0A is rgb(153, 255, 10) — red 153, green 255, and blue 10 on the 0-255 scale.

What is the CMYK value of #99FF0A?

#99FF0A converts to approximately cmyk(40%, 0%, 96%, 0%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #99FF0A be black or white?

Black text is the more readable choice. #99FF0A scores 1.26:1 against white and 16.66:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #99FF0A as a CSS color keyword?

No. #99FF0A 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 chartreuse (#7FFF00) at a CIE76 distance of 7.92, which is clearly related but distinguishable side by side.

Open #99FF0A 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.