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#51B116 Color

#51B116 is rgb(81, 177, 22) in RGB, hsl(97, 78%, 39%) in HSL, and about cmyk(54%, 0%, 88%, 31%) in CMYK. It has no registered color name of its own — the closest is Kelly Green (#4CBB17), clearly related but distinguishable side by side at ΔE 5.95. Black text is the more readable choice on this background.

#51B116
HEX#51B116
RGBrgb(81, 177, 22)
HSLhsl(97, 78%, 39%)
HSVhsv(97, 88%, 69%)
CMYKcmyk(54%, 0%, 88%, 31%)
OKLCHoklch(67.5% 0.199 137.4)
LABlab(64.48% -47.83 60.44)
LCHlch(64.48% 77.07 128.36)

What #51B116 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 #51B116, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Kelly Green#4CBB17ΔE 5.95Green (RYB)#66B032ΔE 10.55Vine Green#38A32AΔE 11.9Slimy Green#299617ΔE 13.75Microsoft Green#7DB700ΔE 14.41Lime Green#32CD32ΔE 16.25

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

#51B116 Channel Values

How #51B116 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 81 · G 177 · B 228-bit channels as sent to the display
HSLH 97° · S 78% · L 39%Easiest model for building lighter and darker variants
HSVH 97° · S 88% · V 69%Matches the picker in most design tools
CMYKC 54% · M 0% · Y 88% · K 31%Approximate ink mix; confirm with an ICC profile before printing
Luminance2.74:1 vs white · 7.65:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #51B116 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 text2.74:1AA normal AA large AAA normal
TextBlack text7.65:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #51B116 in the contrast checker.

Colors That Go With #51B116

Pairings derived from color-wheel relationships. The complementary color sits opposite #51B116; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#51B116
Complementary
#7616B1
Analogous
#9FB116
Analogous
#16B128
Triadic
#1651B1
Triadic
#B11651
Split comp.
#2816B1
Split comp.
#B1169F

Tints & Shades of #51B116

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

#62D51A
#7AE637
#92EB5C
#AEF084
#C6F4A9
#E1F9D2

Shades

#479A13
#3C8410
#326D0D
#28560B
#1D4008
#132905

Want a full 50-950 ramp with semantic roles? Generate design tokens from #51B116.

How #51B116 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#51B116
Protanopia#A5A519
Protanomaly#8BAA18
Deuteranopia#9A9A24
Deuteranomaly#83A41F
Tritanopia#68A7A7
Tritanomaly#5FAB85
Achromatopsia#9C9C9C

Test a full palette in the color blindness simulator.

Using #51B116 in Code

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

CSS custom property--color-51b116: #51B116;
CSS backgroundbackground-color: #51B116;
Tailwind configcolors: { 'color-51b116': '#51B116' }
SwiftUIColor(red: 0.318, green: 0.694, blue: 0.086)
Android XML<color name="color_51b116">#51B116</color>
SVG fillfill="#51B116"

More Green Colors

#51B116 sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.

000200fdfff5001f00f7fee7002400f7fbf5002c22f5fffa002e00f5fff5003300f0fff000800000db870d542b20483f33cc6646c3995ea50072863991e0b7a3f5d8bcd7bcd1ffed

#51B116 Frequently Asked Questions

What color is #51B116?

#51B116 is a dark green — rgb(81, 177, 22) in RGB and hsl(97, 78%, 39%) in HSL. It carries no registered color name of its own; the closest named color is Kelly Green (#4CBB17), which is clearly related but distinguishable side by side at a CIE76 distance of 5.95.

What is the RGB value of #51B116?

#51B116 is rgb(81, 177, 22) — red 81, green 177, and blue 22 on the 0-255 scale.

What is the CMYK value of #51B116?

#51B116 converts to approximately cmyk(54%, 0%, 88%, 31%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #51B116 be black or white?

Black text is the more readable choice. #51B116 scores 2.74:1 against white and 7.65:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #51B116 as a CSS color keyword?

No. #51B116 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 16.25, which is visibly different.

Open #51B116 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.