#51E57A#51E57A

#51E57A is a light, vivid green. Relative luminance 0.592; OKLCH L 81.9% C 0.194 H 149.1°. Best body text is #000000 at 12.84:1 contrast (WCAG AA passes).

Color values

HEX	#51E57A
RGB	rgb(81, 229, 122)
HSL	hsl(137, 74%, 61%)
HSV	hsv(137, 65%, 90%)
CMYK	cmyk(64.6%, 0%, 46.7%, 10.2%)
CIE-LAB	lab(81.40, -61.69, 40.75)
CIE-LCH	lch(81.40, 73.93, 146.55°)
OKLab	oklab(81.87% -0.1664 0.0995)
OKLCH	oklch(81.87% 0.194 149.1)
XYZ	xyz(34.9229, 59.1895, 27.9928)
Luminance	0.5919 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E57A #E551BC

analogous

#72E551 #51E57A #51E5C4

triadic

#51E57A #7A51E5 #E57A51

tetradic

#51E57A #5172E5 #E551BC #E5C451

square

#51E57A #5172E5 #E551BC #E5C451

split-complementary

#51E57A #C451E5 #E55172

monochromatic

#18A33F #20D853 #51E57A #86EDA3 #BBF5CB

Accessibility & contrast

On white

1.64

#51E57A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.84

#51E57A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E57A

12.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E57A	#FFFFFF	#000000	##000000
##51E57A	1.00	1.64	12.84	12.84
#FFFFFF	1.64	1.00	21.00	21.00
#000000	12.84	21.00	1.00	1.00
##000000	12.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E7D272

Deuteranopia (green-blind)

#D4C581

Tritanopia (blue-blind)

#17E1CC

Achromatopsia (no color)

#CACACA

Design tokens & code

CSS

--color: #51e57a;
/* rgb */ color: rgb(81, 229, 122);
/* oklch */ color: oklch(81.9% 0.194 149.1);

Tailwind

colors: {
  custom: {
    50: '#91eea2',
    500: '#51e57a',
    950: '#000000',
  },
}

SCSS

$custom: #51e57a;
$custom-light: #91eea2;
$custom-dark: #000000;

JSON

{
  "hex": "#51e57a",
  "rgb": {
    "r": 81,
    "g": 229,
    "b": 122
  },
  "hsl": {
    "h": 136.622,
    "s": 74,
    "l": 60.784
  },
  "oklch": {
    "l": 0.81874,
    "c": 0.19387,
    "h": 149.1
  },
  "luminance": 0.59193
}

Semantic roles & 50–950 ramp

primary

#51E57A

secondary

#A63586

accent

#0F9FD6

background

#FCFFFC

surface

#F5FEF5

border

#CFD6CF

text

#0E160F

muted

#7F8580

Preview Lab

Preview with #51E57A

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

Preview Lab → · Contrast checker → · Palette generator →