#51DB78#51DB78

#51DB78 is a light, vivid green. Relative luminance 0.538; OKLCH L 79.3% C 0.183 H 149.5°. Best body text is #000000 at 11.75:1 contrast (WCAG AA passes).

Color values

HEX	#51DB78
RGB	rgb(81, 219, 120)
HSL	hsl(137, 66%, 59%)
HSV	hsv(137, 63%, 86%)
CMYK	cmyk(63%, 0%, 45.2%, 14.1%)
CIE-LAB	lab(78.32, -58.33, 37.84)
CIE-LCH	lch(78.32, 69.53, 147.03°)
OKLab	oklab(79.33% -0.1574 0.0928)
OKLCH	oklch(79.33% 0.183 149.5)
XYZ	xyz(32.1126, 53.7652, 26.4510)
Luminance	0.5377 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DB78 #DB51B4

analogous

#6FDB51 #51DB78 #51DBBD

triadic

#51DB78 #7851DB #DB7851

tetradic

#51DB78 #516FDB #DB51B4 #DBBD51

square

#51DB78 #516FDB #DB51B4 #DBBD51

split-complementary

#51DB78 #BD51DB #DB516F

monochromatic

#1E933F #29C655 #51DB78 #84E59F #B6F0C7

Accessibility & contrast

On white

1.79

#51DB78 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.75

#51DB78 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DB78

11.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DB78	#FFFFFF	#000000	##000000
##51DB78	1.00	1.79	11.75	11.75
#FFFFFF	1.79	1.00	21.00	21.00
#000000	11.75	21.00	1.00	1.00
##000000	11.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DDC970

Deuteranopia (green-blind)

#CBBD7F

Tritanopia (blue-blind)

#21D7C3

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #51db78;
/* rgb */ color: rgb(81, 219, 120);
/* oklch */ color: oklch(79.3% 0.183 149.5);

Tailwind

colors: {
  custom: {
    50: '#90e7a0',
    500: '#51db78',
    950: '#000000',
  },
}

SCSS

$custom: #51db78;
$custom-light: #90e7a0;
$custom-dark: #000000;

JSON

{
  "hex": "#51db78",
  "rgb": {
    "r": 81,
    "g": 219,
    "b": 120
  },
  "hsl": {
    "h": 136.957,
    "s": 65.714,
    "l": 58.824
  },
  "oklch": {
    "l": 0.79335,
    "c": 0.18272,
    "h": 149.5
  },
  "luminance": 0.53768
}

Semantic roles & 50–950 ramp

primary

#51DB78

secondary

#98387D

accent

#3FB9E9

background

#FCFEFC

surface

#F5FDF5

border

#CFD5CF

text

#0E160F

muted

#7F8480

Preview Lab

Preview with #51DB78

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

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