#51E47C#51E47C

#51E47C is a light, vivid green. Relative luminance 0.587; OKLCH L 81.7% C 0.191 H 149.6°. Best body text is #000000 at 12.74:1 contrast (WCAG AA passes).

Color values

HEX	#51E47C
RGB	rgb(81, 228, 124)
HSL	hsl(138, 73%, 61%)
HSV	hsv(138, 64%, 89%)
CMYK	cmyk(64.5%, 0%, 45.6%, 10.6%)
CIE-LAB	lab(81.12, -61.02, 39.42)
CIE-LCH	lch(81.12, 72.64, 147.13°)
OKLab	oklab(81.66% -0.1646 0.0965)
OKLCH	oklch(81.66% 0.191 149.6)
XYZ	xyz(34.7722, 58.6878, 28.5602)
Luminance	0.5869 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E47C #E451B9

analogous

#6FE451 #51E47C #51E4C5

triadic

#51E47C #7C51E4 #E47C51

tetradic

#51E47C #516FE4 #E451B9 #E4C551

square

#51E47C #516FE4 #E451B9 #E4C551

split-complementary

#51E47C #C551E4 #E4516F

monochromatic

#19A241 #21D756 #51E47C #86ECA4 #BBF4CC

Accessibility & contrast

On white

1.65

#51E47C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.74

#51E47C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E47C

12.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E47C	#FFFFFF	#000000	##000000
##51E47C	1.00	1.65	12.74	12.74
#FFFFFF	1.65	1.00	21.00	21.00
#000000	12.74	21.00	1.00	1.00
##000000	12.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E6D174

Deuteranopia (green-blind)

#D3C483

Tritanopia (blue-blind)

#15E0CB

Achromatopsia (no color)

#C9C9C9

Design tokens & code

CSS

--color: #51e47c;
/* rgb */ color: rgb(81, 228, 124);
/* oklch */ color: oklch(81.7% 0.191 149.6);

Tailwind

colors: {
  custom: {
    50: '#91eea3',
    500: '#51e47c',
    950: '#000000',
  },
}

SCSS

$custom: #51e47c;
$custom-light: #91eea3;
$custom-dark: #000000;

JSON

{
  "hex": "#51e47c",
  "rgb": {
    "r": 81,
    "g": 228,
    "b": 124
  },
  "hsl": {
    "h": 137.551,
    "s": 73.134,
    "l": 60.588
  },
  "oklch": {
    "l": 0.81656,
    "c": 0.1908,
    "h": 149.6
  },
  "luminance": 0.58691
}

Semantic roles & 50–950 ramp

primary

#51E47C

secondary

#A43584

accent

#109CD5

background

#FCFFFC

surface

#F5FEF6

border

#CFD6D0

text

#0E160F

muted

#7F8580

Preview Lab

Preview with #51E47C

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

Preview Lab → · Contrast checker → · Palette generator →