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#51D6BA Color

#51D6BA is rgb(81, 214, 186) in RGB, hsl(167, 62%, 58%) in HSL, and about cmyk(62%, 0%, 13%, 16%) in CMYK. It has no registered color name of its own — the closest is Medium Aquamarine (#66CDAA), clearly related but distinguishable side by side at ΔE 7.76. Black text is the more readable choice on this background.

#51D6BA
HEX#51D6BA
RGBrgb(81, 214, 186)
HSLhsl(167, 62%, 58%)
HSVhsv(167, 62%, 84%)
CMYKcmyk(62%, 0%, 13%, 16%)
OKLCHoklch(79.6% 0.123 176.4)
LABlab(77.88% -42.94 2.55)
LCHlch(77.88% 43.02 176.60)

What #51D6BA 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 #51D6BA, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Medium Aquamarine#66CDAAΔE 7.76Turquoise#40E0D0ΔE 8.16Eucalyptus#44D7A8ΔE 10.66Medium Turquoise#48D1CCΔE 12.29Mountain Meadow#30BA8FΔE 13.49Pearl Aqua#88D8C0ΔE 13.58

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

#51D6BA Channel Values

How #51D6BA 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 214 · B 1868-bit channels as sent to the display
HSLH 167° · S 62% · L 58%Easiest model for building lighter and darker variants
HSVH 167° · S 62% · V 84%Matches the picker in most design tools
CMYKC 62% · M 0% · Y 13% · K 16%Approximate ink mix; confirm with an ICC profile before printing
Luminance1.8:1 vs white · 11.68:1 vs blackWCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #51D6BA 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 text1.8:1AA normal AA large AAA normal
TextBlack text11.68:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #51D6BA in the contrast checker.

Colors That Go With #51D6BA

Pairings derived from color-wheel relationships. The complementary color sits opposite #51D6BA; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base
#51D6BA
Complementary
#D6516E
Analogous
#51D677
Analogous
#51B1D6
Triadic
#BA51D6
Triadic
#D6BA51
Split comp.
#D651B1
Split comp.
#D67751

Tints & Shades of #51D6BA

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

#6ADCC3
#7FE1CC
#98E7D6
#B1EDE0
#C9F2E9
#DEF7F2

Shades

#30CFAC
#2AB294
#229179
#1A705D
#124E41
#0C3229

Want a full 50-950 ramp with semantic roles? Generate design tokens from #51D6BA.

How #51D6BA 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#51D6BA
Protanopia#C7C7BA
Protanomaly#A5CDBA
Deuteranopia#B8B8BD
Deuteranomaly#99C5BC
Tritanopia#5BD3D3
Tritanomaly#57D4C9
Achromatopsia#C1C1C1

Test a full palette in the color blindness simulator.

Using #51D6BA in Code

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

CSS custom property--color-51d6ba: #51D6BA;
CSS backgroundbackground-color: #51D6BA;
Tailwind configcolors: { 'color-51d6ba': '#51D6BA' }
SwiftUIColor(red: 0.318, green: 0.839, blue: 0.729)
Android XML<color name="color_51d6ba">#51D6BA</color>
SVG fillfill="#51D6BA"

More Green Colors

#51D6BA sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.

000200fdfff5001f00f7fee7002400f7fbf5002c22f5fffa002e00f5fff5003300f0fff000800000db870d542b20483f33cc6646c3995ea50072863991e0b7a3f5d8bcd7bcd1ffed

#51D6BA Frequently Asked Questions

What color is #51D6BA?

#51D6BA is a mid-tone green — rgb(81, 214, 186) in RGB and hsl(167, 62%, 58%) in HSL. It carries no registered color name of its own; the closest named color is Medium Aquamarine (#66CDAA), which is clearly related but distinguishable side by side at a CIE76 distance of 7.76.

What is the RGB value of #51D6BA?

#51D6BA is rgb(81, 214, 186) — red 81, green 214, and blue 186 on the 0-255 scale.

What is the CMYK value of #51D6BA?

#51D6BA converts to approximately cmyk(62%, 0%, 13%, 16%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #51D6BA be black or white?

Black text is the more readable choice. #51D6BA scores 1.8:1 against white and 11.68:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #51D6BA as a CSS color keyword?

No. #51D6BA 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 mediumaquamarine (#66CDAA) at a CIE76 distance of 7.76, which is clearly related but distinguishable side by side.

Open #51D6BA 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.