#51E47F#51E47F

#51E47F is a light, vivid green. Relative luminance 0.588; OKLCH L 81.7% C 0.188 H 150.2°. Best body text is #000000 at 12.75:1 contrast (WCAG AA passes).

Color values

HEX	#51E47F
RGB	rgb(81, 228, 127)
HSL	hsl(139, 73%, 61%)
HSV	hsv(139, 64%, 89%)
CMYK	cmyk(64.5%, 0%, 44.3%, 10.6%)
CIE-LAB	lab(81.16, -60.54, 38.00)
CIE-LCH	lch(81.16, 71.48, 147.89°)
OKLab	oklab(81.71% -0.1633 0.0934)
OKLCH	oklch(81.71% 0.188 150.2)
XYZ	xyz(34.9648, 58.7648, 29.5746)
Luminance	0.5877 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E47F #E451B6

analogous

#6CE451 #51E47F #51E4C9

triadic

#51E47F #7F51E4 #E47F51

tetradic

#51E47F #516CE4 #E451B6 #E4C951

square

#51E47F #516CE4 #E451B6 #E4C951

split-complementary

#51E47F #C951E4 #E4516C

monochromatic

#19A244 #21D75A #51E47F #86ECA6 #BBF4CD

Accessibility & contrast

On white

1.65

#51E47F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.75

#51E47F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E47F

12.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E47F	#FFFFFF	#000000	##000000
##51E47F	1.00	1.65	12.75	12.75
#FFFFFF	1.65	1.00	21.00	21.00
#000000	12.75	21.00	1.00	1.00
##000000	12.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E5D177

Deuteranopia (green-blind)

#D3C486

Tritanopia (blue-blind)

#11E0CC

Achromatopsia (no color)

#CACACA

Design tokens & code

CSS

--color: #51e47f;
/* rgb */ color: rgb(81, 228, 127);
/* oklch */ color: oklch(81.7% 0.188 150.2);

Tailwind

colors: {
  custom: {
    50: '#91eea5',
    500: '#51e47f',
    950: '#000000',
  },
}

SCSS

$custom: #51e47f;
$custom-light: #91eea5;
$custom-dark: #000000;

JSON

{
  "hex": "#51e47f",
  "rgb": {
    "r": 81,
    "g": 228,
    "b": 127
  },
  "hsl": {
    "h": 138.776,
    "s": 73.134,
    "l": 60.588
  },
  "oklch": {
    "l": 0.81705,
    "c": 0.18813,
    "h": 150.2
  },
  "luminance": 0.58768
}

Semantic roles & 50–950 ramp

primary

#51E47F

secondary

#A43581

accent

#1098D5

background

#FCFFFC

surface

#F5FEF6

border

#CFD6D0

text

#0E160F

muted

#7F8580

Preview Lab

Preview with #51E47F

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

Preview Lab → · Contrast checker → · Palette generator →