#51C256#51C256

#51C256 is a light, vivid green. Relative luminance 0.410; OKLCH L 72.5% C 0.180 H 144.2°. Best body text is #000000 at 9.20:1 contrast (WCAG AA passes).

Color values

HEX	#51C256
RGB	rgb(81, 194, 86)
HSL	hsl(123, 48%, 54%)
HSV	hsv(123, 58%, 76%)
CMYK	cmyk(58.2%, 0%, 55.7%, 23.9%)
CIE-LAB	lab(70.18, -53.84, 44.30)
CIE-LCH	lch(70.18, 69.72, 140.55°)
OKLab	oklab(72.48% -0.1461 0.1054)
OKLCH	oklch(72.48% 0.18 144.2)
XYZ	xyz(24.3634, 41.0026, 15.4327)
Luminance	0.4101 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C256 #C251BD

analogous

#85C251 #51C256 #51C28F

triadic

#51C256 #5651C2 #C25651

tetradic

#51C256 #5185C2 #C251BD #C28F51

square

#51C256 #5185C2 #C251BD #C28F51

split-complementary

#51C256 #8F51C2 #C25185

monochromatic

#28712B #379E3C #51C256 #7ED282 #ACE2AE

Accessibility & contrast

On white

2.28

#51C256 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.20

#51C256 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C256

9.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C256	#FFFFFF	#000000	##000000
##51C256	1.00	2.28	9.20	9.20
#FFFFFF	2.28	1.00	21.00	21.00
#000000	9.20	21.00	1.00	1.00
##000000	9.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C5B24C

Deuteranopia (green-blind)

#B7A85E

Tritanopia (blue-blind)

#3CBDAA

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #51c256;
/* rgb */ color: rgb(81, 194, 86);
/* oklch */ color: oklch(72.5% 0.180 144.2);

Tailwind

colors: {
  custom: {
    50: '#8dd588',
    500: '#51c256',
    950: '#000000',
  },
}

SCSS

$custom: #51c256;
$custom-light: #8dd588;
$custom-dark: #000000;

JSON

{
  "hex": "#51c256",
  "rgb": {
    "r": 81,
    "g": 194,
    "b": 86
  },
  "hsl": {
    "h": 122.655,
    "s": 48.085,
    "l": 53.922
  },
  "oklch": {
    "l": 0.72482,
    "c": 0.18015,
    "h": 144.2
  },
  "luminance": 0.41005
}

Semantic roles & 50–950 ramp

primary

#51C256

secondary

#D09FCD

accent

#50D2D8

background

#F9FDF8

surface

#F1FAF0

border

#CBD3CB

text

#0D140C

muted

#7E837D

Preview Lab

Preview with #51C256

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

Preview Lab → · Contrast checker → · Palette generator →