#51C879#51C879

#51C879 is a light, vivid green. Relative luminance 0.444; OKLCH L 74.6% C 0.156 H 151.7°. Best body text is #000000 at 9.89:1 contrast (WCAG AA passes).

Color values

HEX	#51C879
RGB	rgb(81, 200, 121)
HSL	hsl(140, 52%, 55%)
HSV	hsv(140, 60%, 78%)
CMYK	cmyk(59.5%, 0%, 39.5%, 21.6%)
CIE-LAB	lab(72.52, -50.86, 29.80)
CIE-LCH	lch(72.52, 58.95, 149.63°)
OKLab	oklab(74.57% -0.1376 0.0741)
OKLCH	oklch(74.57% 0.156 151.7)
XYZ	xyz(27.4967, 44.4357, 25.2134)
Luminance	0.4444 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C879 #C851A0

analogous

#65C851 #51C879 #51C8B4

triadic

#51C879 #7951C8 #C87951

tetradic

#51C879 #5165C8 #C851A0 #C8B451

square

#51C879 #5165C8 #C851A0 #C8B451

split-complementary

#51C879 #B451C8 #C85165

monochromatic

#267942 #35A75B #51C879 #80D79D #AEE5C1

Accessibility & contrast

On white

2.12

#51C879 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.89

#51C879 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C879

9.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C879	#FFFFFF	#000000	##000000
##51C879	1.00	2.12	9.89	9.89
#FFFFFF	2.12	1.00	21.00	21.00
#000000	9.89	21.00	1.00	1.00
##000000	9.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C9B973

Deuteranopia (green-blind)

#B9AD7E

Tritanopia (blue-blind)

#2CC5B4

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #51c879;
/* rgb */ color: rgb(81, 200, 121);
/* oklch */ color: oklch(74.6% 0.156 151.7);

Tailwind

colors: {
  custom: {
    50: '#8dd9a0',
    500: '#51c879',
    950: '#000000',
  },
}

SCSS

$custom: #51c879;
$custom-light: #8dd9a0;
$custom-dark: #000000;

JSON

{
  "hex": "#51c879",
  "rgb": {
    "r": 81,
    "g": 200,
    "b": 121
  },
  "hsl": {
    "h": 140.168,
    "s": 51.965,
    "l": 55.098
  },
  "oklch": {
    "l": 0.74565,
    "c": 0.15633,
    "h": 151.7
  },
  "luminance": 0.44438
}

Semantic roles & 50–950 ramp

primary

#51C879

secondary

#D3A1C3

accent

#4CABDB

background

#F9FDF9

surface

#F1FBF2

border

#CBD4CC

text

#0D150F

muted

#7E837E

Preview Lab

Preview with #51C879

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

Preview Lab → · Contrast checker → · Palette generator →