#51E281#51E281

#51E281 is a light, vivid green. Relative luminance 0.577; OKLCH L 81.2% C 0.184 H 150.9°. Best body text is #000000 at 12.55:1 contrast (WCAG AA passes).

Color values

HEX	#51E281
RGB	rgb(81, 226, 129)
HSL	hsl(140, 71%, 60%)
HSV	hsv(140, 64%, 89%)
CMYK	cmyk(64.2%, 0%, 42.9%, 11.4%)
CIE-LAB	lab(80.58, -59.48, 36.26)
CIE-LCH	lch(80.58, 69.66, 148.63°)
OKLab	oklab(81.24% -0.1605 0.0894)
OKLCH	oklch(81.24% 0.184 150.9)
XYZ	xyz(34.5494, 57.7234, 30.0856)
Luminance	0.5773 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E281 #E251B2

analogous

#69E251 #51E281 #51E2CA

triadic

#51E281 #8151E2 #E28151

tetradic

#51E281 #5169E2 #E251B2 #E2CA51

square

#51E281 #5169E2 #E251B2 #E2CA51

split-complementary

#51E281 #CA51E2 #E25169

monochromatic

#1A9E46 #23D35D #51E281 #85EBA7 #BAF3CD

Accessibility & contrast

On white

1.67

#51E281 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.55

#51E281 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E281

12.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E281	#FFFFFF	#000000	##000000
##51E281	1.00	1.67	12.55	12.55
#FFFFFF	1.67	1.00	21.00	21.00
#000000	12.55	21.00	1.00	1.00
##000000	12.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E3D07A

Deuteranopia (green-blind)

#D1C388

Tritanopia (blue-blind)

#11DECA

Achromatopsia (no color)

#C8C8C8

Design tokens & code

CSS

--color: #51e281;
/* rgb */ color: rgb(81, 226, 129);
/* oklch */ color: oklch(81.2% 0.184 150.9);

Tailwind

colors: {
  custom: {
    50: '#91eca7',
    500: '#51e281',
    950: '#000000',
  },
}

SCSS

$custom: #51e281;
$custom-light: #91eca7;
$custom-dark: #000000;

JSON

{
  "hex": "#51e281",
  "rgb": {
    "r": 81,
    "g": 226,
    "b": 129
  },
  "hsl": {
    "h": 139.862,
    "s": 71.429,
    "l": 60.196
  },
  "oklch": {
    "l": 0.81239,
    "c": 0.18374,
    "h": 150.9
  },
  "luminance": 0.57727
}

Semantic roles & 50–950 ramp

primary

#51E281

secondary

#A1367E

accent

#1293D3

background

#FCFFFC

surface

#F5FEF6

border

#CFD6D0

text

#0E160F

muted

#7F8580

Preview Lab

Preview with #51E281

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

Preview Lab → · Contrast checker → · Palette generator →