#51E178#51E178

#51E178 is a light, vivid green. Relative luminance 0.570; OKLCH L 80.8% C 0.191 H 149.0°. Best body text is #000000 at 12.39:1 contrast (WCAG AA passes).

Color values

HEX	#51E178
RGB	rgb(81, 225, 120)
HSL	hsl(136, 71%, 60%)
HSV	hsv(136, 64%, 88%)
CMYK	cmyk(64%, 0%, 46.7%, 11.8%)
CIE-LAB	lab(80.15, -60.54, 40.16)
CIE-LCH	lch(80.15, 72.65, 146.44°)
OKLab	oklab(80.84% -0.1633 0.0981)
OKLCH	oklch(80.84% 0.191 149)
XYZ	xyz(33.7062, 56.9524, 26.9822)
Luminance	0.5696 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E178 #E151BA

analogous

#72E151 #51E178 #51E1C0

triadic

#51E178 #7851E1 #E17851

tetradic

#51E178 #5172E1 #E151BA #E1C051

square

#51E178 #5172E1 #E151BA #E1C051

split-complementary

#51E178 #C051E1 #E15172

monochromatic

#1B9D3E #24D153 #51E178 #85EAA1 #B9F3C9

Accessibility & contrast

On white

1.69

#51E178 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.39

#51E178 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E178

12.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E178	#FFFFFF	#000000	##000000
##51E178	1.00	1.69	12.39	12.39
#FFFFFF	1.69	1.00	21.00	21.00
#000000	12.39	21.00	1.00	1.00
##000000	12.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E3CE70

Deuteranopia (green-blind)

#D1C27F

Tritanopia (blue-blind)

#1CDDC8

Achromatopsia (no color)

#C7C7C7

Design tokens & code

CSS

--color: #51e178;
/* rgb */ color: rgb(81, 225, 120);
/* oklch */ color: oklch(80.8% 0.191 149.0);

Tailwind

colors: {
  custom: {
    50: '#91eba0',
    500: '#51e178',
    950: '#000000',
  },
}

SCSS

$custom: #51e178;
$custom-light: #91eba0;
$custom-dark: #000000;

JSON

{
  "hex": "#51e178",
  "rgb": {
    "r": 81,
    "g": 225,
    "b": 120
  },
  "hsl": {
    "h": 136.25,
    "s": 70.588,
    "l": 60
  },
  "oklch": {
    "l": 0.80841,
    "c": 0.19051,
    "h": 149
  },
  "luminance": 0.56956
}

Semantic roles & 50–950 ramp

primary

#51E178

secondary

#A03683

accent

#3ABDED

background

#FCFFFC

surface

#F5FEF5

border

#CFD6CF

text

#0E160F

muted

#7F8580

Preview Lab

Preview with #51E178

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

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