#51C178#51C178

#51C178 is a light, vivid green. Relative luminance 0.412; OKLCH L 72.8% C 0.148 H 152.3°. Best body text is #000000 at 9.25:1 contrast (WCAG AA passes).

Color values

HEX	#51C178
RGB	rgb(81, 193, 120)
HSL	hsl(141, 47%, 54%)
HSV	hsv(141, 58%, 76%)
CMYK	cmyk(58%, 0%, 37.8%, 24.3%)
CIE-LAB	lab(70.35, -48.22, 27.45)
CIE-LCH	lch(70.35, 55.49, 150.35°)
OKLab	oklab(72.78% -0.1307 0.0685)
OKLCH	oklch(72.78% 0.148 152.3)
XYZ	xyz(25.8515, 41.2429, 24.3640)
Luminance	0.4124 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C178 #C1519A

analogous

#62C151 #51C178 #51C1B0

triadic

#51C178 #7851C1 #C17851

tetradic

#51C178 #5162C1 #C1519A #C1B051

square

#51C178 #5162C1 #C1519A #C1B051

split-complementary

#51C178 #B051C1 #C15162

monochromatic

#287041 #389D5B #51C178 #7ED19B #ABE1BE

Accessibility & contrast

On white

2.27

#51C178 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.25

#51C178 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C178

9.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C178	#FFFFFF	#000000	##000000
##51C178	1.00	2.27	9.25	9.25
#FFFFFF	2.27	1.00	21.00	21.00
#000000	9.25	21.00	1.00	1.00
##000000	9.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C1B273

Deuteranopia (green-blind)

#B2A87D

Tritanopia (blue-blind)

#2FBEAF

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #51c178;
/* rgb */ color: rgb(81, 193, 120);
/* oklch */ color: oklch(72.8% 0.148 152.3);

Tailwind

colors: {
  custom: {
    50: '#8bd49f',
    500: '#51c178',
    950: '#000000',
  },
}

SCSS

$custom: #51c178;
$custom-light: #8bd49f;
$custom-dark: #000000;

JSON

{
  "hex": "#51c178",
  "rgb": {
    "r": 81,
    "g": 193,
    "b": 120
  },
  "hsl": {
    "h": 140.893,
    "s": 47.458,
    "l": 53.725
  },
  "oklch": {
    "l": 0.72776,
    "c": 0.14756,
    "h": 152.3
  },
  "luminance": 0.41245
}

Semantic roles & 50–950 ramp

primary

#51C178

secondary

#CF9FBE

accent

#51A8D7

background

#F9FDF9

surface

#F1FAF2

border

#CBD3CC

text

#0D140E

muted

#7E837E

Preview Lab

Preview with #51C178

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

Preview Lab → · Contrast checker → · Palette generator →