#51E38B#51E38B

#51E38B is a light, vivid green. Relative luminance 0.586; OKLCH L 81.7% C 0.176 H 153.2°. Best body text is #000000 at 12.71:1 contrast (WCAG AA passes).

Color values

HEX	#51E38B
RGB	rgb(81, 227, 139)
HSL	hsl(144, 72%, 60%)
HSV	hsv(144, 64%, 89%)
CMYK	cmyk(64.3%, 0%, 38.8%, 11%)
CIE-LAB	lab(81.04, -58.14, 31.83)
CIE-LCH	lch(81.04, 66.28, 151.30°)
OKLab	oklab(81.67% -0.1572 0.0793)
OKLCH	oklch(81.67% 0.176 153.2)
XYZ	xyz(35.5196, 58.5479, 33.8501)
Luminance	0.5855 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E38B #E351A9

analogous

#60E351 #51E38B #51E3D4

triadic

#51E38B #8B51E3 #E38B51

tetradic

#51E38B #5160E3 #E351A9 #E3D451

square

#51E38B #5160E3 #E351A9 #E3D451

split-complementary

#51E38B #D451E3 #E35160

monochromatic

#1AA04F #22D569 #51E38B #86EBAE #BAF4D1

Accessibility & contrast

On white

1.65

#51E38B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.71

#51E38B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E38B

12.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E38B	#FFFFFF	#000000	##000000
##51E38B	1.00	1.65	12.71	12.71
#FFFFFF	1.65	1.00	21.00	21.00
#000000	12.71	21.00	1.00	1.00
##000000	12.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E3D185

Deuteranopia (green-blind)

#D0C491

Tritanopia (blue-blind)

#00E0CD

Achromatopsia (no color)

#C9C9C9

Design tokens & code

CSS

--color: #51e38b;
/* rgb */ color: rgb(81, 227, 139);
/* oklch */ color: oklch(81.7% 0.176 153.2);

Tailwind

colors: {
  custom: {
    50: '#91edad',
    500: '#51e38b',
    950: '#000000',
  },
}

SCSS

$custom: #51e38b;
$custom-light: #91edad;
$custom-dark: #000000;

JSON

{
  "hex": "#51e38b",
  "rgb": {
    "r": 81,
    "g": 227,
    "b": 139
  },
  "hsl": {
    "h": 143.836,
    "s": 72.277,
    "l": 60.392
  },
  "oklch": {
    "l": 0.81666,
    "c": 0.17602,
    "h": 153.2
  },
  "luminance": 0.58552
}

Semantic roles & 50–950 ramp

primary

#51E38B

secondary

#A33577

accent

#1187D4

background

#FCFFFD

surface

#F5FEF7

border

#CFD6D0

text

#0E1610

muted

#7F8581

Preview Lab

Preview with #51E38B

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

Preview Lab → · Contrast checker → · Palette generator →