#51E181#51E181

#51E181 is a light, vivid green. Relative luminance 0.572; OKLCH L 81.0% C 0.182 H 151.0°. Best body text is #000000 at 12.44:1 contrast (WCAG AA passes).

Color values

HEX	#51E181
RGB	rgb(81, 225, 129)
HSL	hsl(140, 71%, 60%)
HSV	hsv(140, 64%, 88%)
CMYK	cmyk(64%, 0%, 42.7%, 11.8%)
CIE-LAB	lab(80.28, -59.10, 35.87)
CIE-LCH	lch(80.28, 69.14, 148.75°)
OKLab	oklab(80.99% -0.1595 0.0885)
OKLCH	oklch(80.99% 0.182 151)
XYZ	xyz(34.2783, 57.1812, 29.9952)
Luminance	0.5718 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E181 #E151B1

analogous

#69E151 #51E181 #51E1C9

triadic

#51E181 #8151E1 #E18151

tetradic

#51E181 #5169E1 #E151B1 #E1C951

square

#51E181 #5169E1 #E151B1 #E1C951

split-complementary

#51E181 #C951E1 #E15169

monochromatic

#1B9D46 #24D15E #51E181 #85EAA7 #B9F3CD

Accessibility & contrast

On white

1.69

#51E181 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.44

#51E181 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E181

12.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E181	#FFFFFF	#000000	##000000
##51E181	1.00	1.69	12.44	12.44
#FFFFFF	1.69	1.00	21.00	21.00
#000000	12.44	21.00	1.00	1.00
##000000	12.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E2CF7A

Deuteranopia (green-blind)

#D0C287

Tritanopia (blue-blind)

#12DECA

Achromatopsia (no color)

#C7C7C7

Design tokens & code

CSS

--color: #51e181;
/* rgb */ color: rgb(81, 225, 129);
/* oklch */ color: oklch(81.0% 0.182 151.0);

Tailwind

colors: {
  custom: {
    50: '#91eba6',
    500: '#51e181',
    950: '#000000',
  },
}

SCSS

$custom: #51e181;
$custom-light: #91eba6;
$custom-dark: #000000;

JSON

{
  "hex": "#51e181",
  "rgb": {
    "r": 81,
    "g": 225,
    "b": 129
  },
  "hsl": {
    "h": 140,
    "s": 70.588,
    "l": 60
  },
  "oklch": {
    "l": 0.80989,
    "c": 0.18243,
    "h": 151
  },
  "luminance": 0.57185
}

Semantic roles & 50–950 ramp

primary

#51E181

secondary

#A0367D

accent

#3AB2ED

background

#FCFFFC

surface

#F5FEF6

border

#CFD6D0

text

#0E160F

muted

#7F8580

Preview Lab

Preview with #51E181

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

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