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#51FB7E Color

#51FB7E is rgb(81, 251, 126) in RGB, hsl(136, 96%, 65%) in HSL, and about cmyk(68%, 0%, 50%, 2%) in CMYK. It has no registered color name of its own — the closest is Spring Green (#00FF7F), clearly related but distinguishable side by side at ΔE 7.99. Black text is the more readable choice on this background.

#51FB7E
HEX#51FB7E
RGBrgb(81, 251, 126)
HSLhsl(136, 96%, 65%)
HSVhsv(136, 68%, 98%)
CMYKcmyk(68%, 0%, 50%, 2%)
OKLCHoklch(87.4% 0.218 148.4)
LABlab(88.09% -64.53 46.26)
LCHlch(88.09% 79.39 144.36)

What #51FB7E 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 #51FB7E, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Spring Green#00FF7FΔE 7.99Screamin' Green#66FF66ΔE 12.52Malachite#0BDA51ΔE 13.26Medium Spring Green#00FA9AΔE 15.01Very Light Malachite Green#64E986ΔE 15.08Android Green#3DDC84ΔE 19.54

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

#51FB7E Channel Values

How #51FB7E 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 251 · B 1268-bit channels as sent to the display
HSLH 136° · S 96% · L 65%Easiest model for building lighter and darker variants
HSVH 136° · S 68% · V 98%Matches the picker in most design tools
CMYKC 68% · M 0% · Y 50% · K 2%Approximate ink mix; confirm with an ICC profile before printing
Luminance1.36:1 vs white · 15.45:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #51FB7E 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 text1.36:1AA normal AA large AAA normal
TextBlack text15.45:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #51FB7E in the contrast checker.

Colors That Go With #51FB7E

Pairings derived from color-wheel relationships. The complementary color sits opposite #51FB7E; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#51FB7E
Complementary
#FB50CE
Analogous
#78FB50
Analogous
#50FBD3
Triadic
#7E50FB
Triadic
#FB7E50
Split comp.
#D350FB
Split comp.
#FB5078

Tints & Shades of #51FB7E

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

#69FC90
#7DFC9F
#96FDB1
#AFFDC4
#C8FED6
#DCFEE5

Shades

#23FB5D
#05F044
#04C337
#03962A
#02691E
#014112

Want a full 50-950 ramp with semantic roles? Generate design tokens from #51FB7E.

How #51FB7E 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#51FB7E
Protanopia#E9E97F
Protanomaly#BFF07F
Deuteranopia#D6D685
Deuteranomaly#B0E682
Tritanopia#75F0F0
Tritanomaly#69F4CC
Achromatopsia#DDDDDD

Test a full palette in the color blindness simulator.

Using #51FB7E in Code

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

CSS custom property--color-51fb7e: #51FB7E;
CSS backgroundbackground-color: #51FB7E;
Tailwind configcolors: { 'color-51fb7e': '#51FB7E' }
SwiftUIColor(red: 0.318, green: 0.984, blue: 0.494)
Android XML<color name="color_51fb7e">#51FB7E</color>
SVG fillfill="#51FB7E"

More Green Colors

#51FB7E sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.

000200fdfff5001f00f7fee7002400f7fbf5002c22f5fffa002e00f5fff5003300f0fff000800000db870d542b20483f33cc6646c3995ea50072863991e0b7a3f5d8bcd7bcd1ffed

#51FB7E Frequently Asked Questions

What color is #51FB7E?

#51FB7E is a light green — rgb(81, 251, 126) in RGB and hsl(136, 96%, 65%) in HSL. It carries no registered color name of its own; the closest named color is Spring Green (#00FF7F), which is clearly related but distinguishable side by side at a CIE76 distance of 7.99.

What is the RGB value of #51FB7E?

#51FB7E is rgb(81, 251, 126) — red 81, green 251, and blue 126 on the 0-255 scale.

What is the CMYK value of #51FB7E?

#51FB7E converts to approximately cmyk(68%, 0%, 50%, 2%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #51FB7E be black or white?

Black text is the more readable choice. #51FB7E scores 1.36:1 against white and 15.45:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #51FB7E as a CSS color keyword?

No. #51FB7E 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 7.99, which is clearly related but distinguishable side by side.

Open #51FB7E 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.