#51DD79#51DD79

#51DD79 is a light, vivid green. Relative luminance 0.548; OKLCH L 79.9% C 0.184 H 149.5°. Best body text is #000000 at 11.97:1 contrast (WCAG AA passes).

Color values

HEX	#51DD79
RGB	rgb(81, 221, 121)
HSL	hsl(137, 67%, 59%)
HSV	hsv(137, 63%, 87%)
CMYK	cmyk(63.3%, 0%, 45.2%, 13.3%)
CIE-LAB	lab(78.95, -58.91, 38.14)
CIE-LCH	lch(78.95, 70.18, 147.08°)
OKLab	oklab(79.85% -0.159 0.0935)
OKLCH	oklch(79.85% 0.184 149.5)
XYZ	xyz(32.6985, 54.8394, 26.9473)
Luminance	0.5484 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DD79 #DD51B5

analogous

#6FDD51 #51DD79 #51DDBF

triadic

#51DD79 #7951DD #DD7951

tetradic

#51DD79 #516FDD #DD51B5 #DDBF51

square

#51DD79 #516FDD #DD51B5 #DDBF51

split-complementary

#51DD79 #BF51DD #DD516F

monochromatic

#1D9640 #27C956 #51DD79 #84E7A0 #B7F1C8

Accessibility & contrast

On white

1.75

#51DD79 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.97

#51DD79 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DD79

11.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DD79	#FFFFFF	#000000	##000000
##51DD79	1.00	1.75	11.97	11.97
#FFFFFF	1.75	1.00	21.00	21.00
#000000	11.97	21.00	1.00	1.00
##000000	11.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DFCB71

Deuteranopia (green-blind)

#CDBF80

Tritanopia (blue-blind)

#1FD9C5

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #51dd79;
/* rgb */ color: rgb(81, 221, 121);
/* oklch */ color: oklch(79.9% 0.184 149.5);

Tailwind

colors: {
  custom: {
    50: '#90e9a1',
    500: '#51dd79',
    950: '#000000',
  },
}

SCSS

$custom: #51dd79;
$custom-light: #90e9a1;
$custom-dark: #000000;

JSON

{
  "hex": "#51dd79",
  "rgb": {
    "r": 81,
    "g": 221,
    "b": 121
  },
  "hsl": {
    "h": 137.143,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.79853,
    "c": 0.18444,
    "h": 149.5
  },
  "luminance": 0.54843
}

Semantic roles & 50–950 ramp

primary

#51DD79

secondary

#9B387E

accent

#3EB9EA

background

#FCFEFC

surface

#F5FDF5

border

#CFD5CF

text

#0E160F

muted

#7F8480

Preview Lab

Preview with #51DD79

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

Preview Lab → · Contrast checker → · Palette generator →