#51DD78#51DD78

#51DD78 is a light, vivid green. Relative luminance 0.548; OKLCH L 79.8% C 0.185 H 149.3°. Best body text is #000000 at 11.96:1 contrast (WCAG AA passes).

Color values

HEX	#51DD78
RGB	rgb(81, 221, 120)
HSL	hsl(137, 67%, 59%)
HSV	hsv(137, 63%, 87%)
CMYK	cmyk(63.3%, 0%, 45.7%, 13.3%)
CIE-LAB	lab(78.93, -59.07, 38.61)
CIE-LCH	lch(78.93, 70.57, 146.83°)
OKLab	oklab(79.84% -0.1594 0.0945)
OKLCH	oklch(79.84% 0.185 149.3)
XYZ	xyz(32.6375, 54.8150, 26.6260)
Luminance	0.5482 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DD78 #DD51B6

analogous

#70DD51 #51DD78 #51DDBE

triadic

#51DD78 #7851DD #DD7851

tetradic

#51DD78 #5170DD #DD51B6 #DDBE51

square

#51DD78 #5170DD #DD51B6 #DDBE51

split-complementary

#51DD78 #BE51DD #DD5170

monochromatic

#1D963F #27C955 #51DD78 #84E7A0 #B7F1C7

Accessibility & contrast

On white

1.76

#51DD78 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.96

#51DD78 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DD78

11.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DD78	#FFFFFF	#000000	##000000
##51DD78	1.00	1.76	11.96	11.96
#FFFFFF	1.76	1.00	21.00	21.00
#000000	11.96	21.00	1.00	1.00
##000000	11.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DFCB70

Deuteranopia (green-blind)

#CDBF7F

Tritanopia (blue-blind)

#20D9C5

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #51dd78;
/* rgb */ color: rgb(81, 221, 120);
/* oklch */ color: oklch(79.8% 0.185 149.3);

Tailwind

colors: {
  custom: {
    50: '#90e9a0',
    500: '#51dd78',
    950: '#000000',
  },
}

SCSS

$custom: #51dd78;
$custom-light: #90e9a0;
$custom-dark: #000000;

JSON

{
  "hex": "#51dd78",
  "rgb": {
    "r": 81,
    "g": 221,
    "b": 120
  },
  "hsl": {
    "h": 136.714,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.79837,
    "c": 0.18533,
    "h": 149.3
  },
  "luminance": 0.54818
}

Semantic roles & 50–950 ramp

primary

#51DD78

secondary

#9B387F

accent

#3EBAEA

background

#FCFEFC

surface

#F5FDF5

border

#CFD5CF

text

#0E160F

muted

#7F8480

Preview Lab

Preview with #51DD78

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

Preview Lab → · Contrast checker → · Palette generator →