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#51CA2F Color

#51CA2F is rgb(81, 202, 47) in RGB, hsl(107, 62%, 49%) in HSL, and about cmyk(60%, 0%, 77%, 21%) 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 5.9. Black text is the more readable choice on this background.

#51CA2F
HEX#51CA2F
RGBrgb(81, 202, 47)
HSLhsl(107, 62%, 49%)
HSVhsv(107, 77%, 79%)
CMYKcmyk(60%, 0%, 77%, 21%)
OKLCHoklch(74.2% 0.217 139.9)
LABlab(72.46% -55.22 61.10)
LCHlch(72.46% 82.36 132.11)

What #51CA2F 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 #51CA2F, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Kelly Green#4CBB17ΔE 5.9Lime Green#32CD32ΔE 6.73SGBUS Green#55DD33ΔE 8.98Vivid Malachite#00CC33ΔE 10.54Dark Pastel Green#03C03CΔE 12.14Malachite#0BDA51ΔE 14.92

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

#51CA2F Channel Values

How #51CA2F 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 202 · B 478-bit channels as sent to the display
HSLH 107° · S 62% · L 49%Easiest model for building lighter and darker variants
HSVH 107° · S 77% · V 79%Matches the picker in most design tools
CMYKC 60% · M 0% · Y 77% · K 21%Approximate ink mix; confirm with an ICC profile before printing
Luminance2.13:1 vs white · 9.84:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #51CA2F 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 text2.13:1AA normal AA large AAA normal
TextBlack text9.84:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #51CA2F in the contrast checker.

Colors That Go With #51CA2F

Pairings derived from color-wheel relationships. The complementary color sits opposite #51CA2F; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#51CA2F
Complementary
#A92FCA
Analogous
#9FCA2F
Analogous
#2FCA5B
Triadic
#2F51CA
Triadic
#CA2F51
Split comp.
#5B2FCA
Split comp.
#CA2F9F

Tints & Shades of #51CA2F

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

#67D449
#80DB66
#98E283
#B0E9A0
#C8EFBD
#E0F6DA

Shades

#47B22A
#3C9523
#327C1D
#265F16
#1C4610
#11290A

Want a full 50-950 ramp with semantic roles? Generate design tokens from #51CA2F.

How #51CA2F 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#51CA2F
Protanopia#BCBC31
Protanomaly#9DC230
Deuteranopia#AEAE3A
Deuteranomaly#92BA36
Tritanopia#6DBFBF
Tritanomaly#63C39A
Achromatopsia#B1B1B1

Test a full palette in the color blindness simulator.

Using #51CA2F in Code

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

CSS custom property--color-51ca2f: #51CA2F;
CSS backgroundbackground-color: #51CA2F;
Tailwind configcolors: { 'color-51ca2f': '#51CA2F' }
SwiftUIColor(red: 0.318, green: 0.792, blue: 0.184)
Android XML<color name="color_51ca2f">#51CA2F</color>
SVG fillfill="#51CA2F"

More Green Colors

#51CA2F sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.

000200fdfff5001f00f7fee7002400f7fbf5002c22f5fffa002e00f5fff5003300f0fff000800000db870d542b20483f33cc6646c3995ea50072863991e0b7a3f5d8bcd7bcd1ffed

#51CA2F Frequently Asked Questions

What color is #51CA2F?

#51CA2F is a mid-tone green — rgb(81, 202, 47) in RGB and hsl(107, 62%, 49%) 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 5.9.

What is the RGB value of #51CA2F?

#51CA2F is rgb(81, 202, 47) — red 81, green 202, and blue 47 on the 0-255 scale.

What is the CMYK value of #51CA2F?

#51CA2F converts to approximately cmyk(60%, 0%, 77%, 21%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #51CA2F be black or white?

Black text is the more readable choice. #51CA2F scores 2.13:1 against white and 9.84:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #51CA2F as a CSS color keyword?

No. #51CA2F 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 6.73, which is clearly related but distinguishable side by side.

Open #51CA2F 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.