#51EE81#51EE81

#51EE81 is a very light, vivid green. Relative luminance 0.645; OKLCH L 84.2% C 0.199 H 149.8°. Best body text is #000000 at 13.90:1 contrast (WCAG AA passes).

Color values

HEX	#51EE81
RGB	rgb(81, 238, 129)
HSL	hsl(138, 82%, 63%)
HSV	hsv(138, 66%, 93%)
CMYK	cmyk(66%, 0%, 45.8%, 6.7%)
CIE-LAB	lab(84.21, -63.85, 40.91)
CIE-LCH	lch(84.21, 75.84, 147.35°)
OKLab	oklab(84.23% -0.1721 0.1001)
OKLCH	oklch(84.23% 0.199 149.8)
XYZ	xyz(37.9274, 64.4793, 31.2116)
Luminance	0.6448 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51EE81 #EE51BE

analogous

#6FEE51 #51EE81 #51EED0

triadic

#51EE81 #8151EE #EE8151

tetradic

#51EE81 #516FEE #EE51BE #EED051

square

#51EE81 #516FEE #EE51BE #EED051

split-complementary

#51EE81 #D051EE #EE516F

monochromatic

#11B343 #19E959 #51EE81 #89F3A9 #C1F9D2

Accessibility & contrast

On white

1.51

#51EE81 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.90

#51EE81 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51EE81

13.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51EE81	#FFFFFF	#000000	##000000
##51EE81	1.00	1.51	13.90	13.90
#FFFFFF	1.51	1.00	21.00	21.00
#000000	13.90	21.00	1.00	1.00
##000000	13.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F0DA78

Deuteranopia (green-blind)

#DCCD89

Tritanopia (blue-blind)

#00EAD4

Achromatopsia (no color)

#D2D2D2

Design tokens & code

CSS

--color: #51ee81;
/* rgb */ color: rgb(81, 238, 129);
/* oklch */ color: oklch(84.2% 0.199 149.8);

Tailwind

colors: {
  custom: {
    50: '#93f5a7',
    500: '#51ee81',
    950: '#000000',
  },
}

SCSS

$custom: #51ee81;
$custom-light: #93f5a7;
$custom-dark: #000000;

JSON

{
  "hex": "#51ee81",
  "rgb": {
    "r": 81,
    "g": 238,
    "b": 129
  },
  "hsl": {
    "h": 138.344,
    "s": 82.199,
    "l": 62.549
  },
  "oklch": {
    "l": 0.8423,
    "c": 0.19914,
    "h": 149.8
  },
  "luminance": 0.64483
}

Semantic roles & 50–950 ramp

primary

#51EE81

secondary

#B3308B

accent

#079DDF

background

#FCFFFC

surface

#F5FEF6

border

#CFD6D0

text

#0E170F

muted

#7F8580

Preview Lab

Preview with #51EE81

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

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