#51EF81#51EF81

#51EF81 is a very light, highly saturated green. Relative luminance 0.651; OKLCH L 84.5% C 0.200 H 149.7°. Best body text is #000000 at 14.01:1 contrast (WCAG AA passes).

Color values

HEX	#51EF81
RGB	rgb(81, 239, 129)
HSL	hsl(138, 83%, 63%)
HSV	hsv(138, 66%, 94%)
CMYK	cmyk(66.1%, 0%, 46%, 6.3%)
CIE-LAB	lab(84.52, -64.21, 41.30)
CIE-LCH	lch(84.52, 76.34, 147.25°)
OKLab	oklab(84.48% -0.1731 0.101)
OKLCH	oklch(84.48% 0.2 149.7)
XYZ	xyz(38.2193, 65.0632, 31.3089)
Luminance	0.6507 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51EF81 #EF51BF

analogous

#70EF51 #51EF81 #51EFD0

triadic

#51EF81 #8151EF #EF8151

tetradic

#51EF81 #5170EF #EF51BF #EFD051

square

#51EF81 #5170EF #EF51BF #EFD051

split-complementary

#51EF81 #D051EF #EF5170

monochromatic

#11B543 #19EA58 #51EF81 #89F4AA #C1F9D2

Accessibility & contrast

On white

1.50

#51EF81 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.01

#51EF81 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51EF81

14.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51EF81	#FFFFFF	#000000	##000000
##51EF81	1.00	1.50	14.01	14.01
#FFFFFF	1.50	1.00	21.00	21.00
#000000	14.01	21.00	1.00	1.00
##000000	14.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F1DB78

Deuteranopia (green-blind)

#DDCE89

Tritanopia (blue-blind)

#00EBD5

Achromatopsia (no color)

#D3D3D3

Design tokens & code

CSS

--color: #51ef81;
/* rgb */ color: rgb(81, 239, 129);
/* oklch */ color: oklch(84.5% 0.200 149.7);

Tailwind

colors: {
  custom: {
    50: '#93f5a7',
    500: '#51ef81',
    950: '#000000',
  },
}

SCSS

$custom: #51ef81;
$custom-light: #93f5a7;
$custom-dark: #000000;

JSON

{
  "hex": "#51ef81",
  "rgb": {
    "r": 81,
    "g": 239,
    "b": 129
  },
  "hsl": {
    "h": 138.228,
    "s": 83.158,
    "l": 62.745
  },
  "oklch": {
    "l": 0.84479,
    "c": 0.2004,
    "h": 149.7
  },
  "luminance": 0.65067
}

Semantic roles & 50–950 ramp

primary

#51EF81

secondary

#B5308C

accent

#069DE0

background

#FCFFFC

surface

#F5FFF6

border

#CFD7D0

text

#0E170F

muted

#7F8580

Preview Lab

Preview with #51EF81

Body copy rendered with the generated semantic roles for this colour.

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