#51CB78#51CB78

#51CB78 is a light, vivid green. Relative luminance 0.458; OKLCH L 75.3% C 0.161 H 151.1°. Best body text is #000000 at 10.16:1 contrast (WCAG AA passes).

Color values

HEX	#51CB78
RGB	rgb(81, 203, 120)
HSL	hsl(139, 54%, 56%)
HSV	hsv(139, 60%, 80%)
CMYK	cmyk(60.1%, 0%, 40.9%, 20.4%)
CIE-LAB	lab(73.42, -52.22, 31.51)
CIE-LCH	lch(73.42, 60.99, 148.89°)
OKLab	oklab(75.3% -0.1412 0.0781)
OKLCH	oklch(75.3% 0.161 151.1)
XYZ	xyz(28.1373, 45.8145, 25.1259)
Luminance	0.4582 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CB78 #CB51A4

analogous

#67CB51 #51CB78 #51CBB5

triadic

#51CB78 #7851CB #CB7851

tetradic

#51CB78 #5167CB #CB51A4 #CBB551

square

#51CB78 #5167CB #CB51A4 #CBB551

split-complementary

#51CB78 #B551CB #CB5167

monochromatic

#257C41 #33AC5A #51CB78 #80D99D #AFE7C1

Accessibility & contrast

On white

2.07

#51CB78 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.16

#51CB78 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CB78

10.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CB78	#FFFFFF	#000000	##000000
##51CB78	1.00	2.07	10.16	10.16
#FFFFFF	2.07	1.00	21.00	21.00
#000000	10.16	21.00	1.00	1.00
##000000	10.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CCBB72

Deuteranopia (green-blind)

#BCB07D

Tritanopia (blue-blind)

#2BC8B6

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #51cb78;
/* rgb */ color: rgb(81, 203, 120);
/* oklch */ color: oklch(75.3% 0.161 151.1);

Tailwind

colors: {
  custom: {
    50: '#8ddca0',
    500: '#51cb78',
    950: '#000000',
  },
}

SCSS

$custom: #51cb78;
$custom-light: #8ddca0;
$custom-dark: #000000;

JSON

{
  "hex": "#51cb78",
  "rgb": {
    "r": 81,
    "g": 203,
    "b": 120
  },
  "hsl": {
    "h": 139.18,
    "s": 53.982,
    "l": 55.686
  },
  "oklch": {
    "l": 0.75304,
    "c": 0.16137,
    "h": 151.1
  },
  "luminance": 0.45817
}

Semantic roles & 50–950 ramp

primary

#51CB78

secondary

#D5A3C5

accent

#4AAEDD

background

#F9FDF9

surface

#F1FBF2

border

#CBD4CC

text

#0D150F

muted

#7E837E

Preview Lab

Preview with #51CB78

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

Preview Lab → · Contrast checker → · Palette generator →