#51E271#51E271

#51E271 is a light, vivid green. Relative luminance 0.573; OKLCH L 81.0% C 0.198 H 147.6°. Best body text is #000000 at 12.47:1 contrast (WCAG AA passes).

Color values

HEX	#51E271
RGB	rgb(81, 226, 113)
HSL	hsl(133, 71%, 60%)
HSV	hsv(133, 64%, 89%)
CMYK	cmyk(64.2%, 0%, 50%, 11.4%)
CIE-LAB	lab(80.37, -61.94, 43.82)
CIE-LCH	lch(80.37, 75.87, 144.73°)
OKLab	oklab(80.99% -0.1672 0.106)
OKLCH	oklch(80.99% 0.198 147.6)
XYZ	xyz(33.5679, 57.3308, 24.9165)
Luminance	0.5733 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E271 #E251C2

analogous

#7AE251 #51E271 #51E2B9

triadic

#51E271 #7151E2 #E27151

tetradic

#51E271 #517AE2 #E251C2 #E2B951

square

#51E271 #517AE2 #E251C2 #E2B951

split-complementary

#51E271 #B951E2 #E2517A

monochromatic

#1A9E37 #23D34A #51E271 #85EB9C #BAF3C7

Accessibility & contrast

On white

1.68

#51E271 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.47

#51E271 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E271

12.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E271	#FFFFFF	#000000	##000000
##51E271	1.00	1.68	12.47	12.47
#FFFFFF	1.68	1.00	21.00	21.00
#000000	12.47	21.00	1.00	1.00
##000000	12.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E4CF67

Deuteranopia (green-blind)

#D2C279

Tritanopia (blue-blind)

#21DDC8

Achromatopsia (no color)

#C7C7C7

Design tokens & code

CSS

--color: #51e271;
/* rgb */ color: rgb(81, 226, 113);
/* oklch */ color: oklch(81.0% 0.198 147.6);

Tailwind

colors: {
  custom: {
    50: '#91ec9c',
    500: '#51e271',
    950: '#000000',
  },
}

SCSS

$custom: #51e271;
$custom-light: #91ec9c;
$custom-dark: #000000;

JSON

{
  "hex": "#51e271",
  "rgb": {
    "r": 81,
    "g": 226,
    "b": 113
  },
  "hsl": {
    "h": 133.241,
    "s": 71.429,
    "l": 60.196
  },
  "oklch": {
    "l": 0.80986,
    "c": 0.19794,
    "h": 147.6
  },
  "luminance": 0.57334
}

Semantic roles & 50–950 ramp

primary

#51E271

secondary

#A1368A

accent

#12A9D3

background

#FCFFFC

surface

#F5FEF5

border

#CFD6CF

text

#0E160E

muted

#7F857F

Preview Lab

Preview with #51E271

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

Preview Lab → · Contrast checker → · Palette generator →