#51DD7B#51DD7B

#51DD7B is a light, vivid green. Relative luminance 0.549; OKLCH L 79.9% C 0.183 H 150.0°. Best body text is #000000 at 11.98:1 contrast (WCAG AA passes).

Color values

HEX	#51DD7B
RGB	rgb(81, 221, 123)
HSL	hsl(138, 67%, 59%)
HSV	hsv(138, 63%, 87%)
CMYK	cmyk(63.3%, 0%, 44.3%, 13.3%)
CIE-LAB	lab(78.98, -58.59, 37.18)
CIE-LCH	lch(78.98, 69.39, 147.60°)
OKLab	oklab(79.89% -0.1581 0.0914)
OKLCH	oklch(79.89% 0.183 150)
XYZ	xyz(32.8224, 54.8889, 27.5999)
Luminance	0.5489 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DD7B #DD51B3

analogous

#6DDD51 #51DD7B #51DDC1

triadic

#51DD7B #7B51DD #DD7B51

tetradic

#51DD7B #516DDD #DD51B3 #DDC151

square

#51DD7B #516DDD #DD51B3 #DDC151

split-complementary

#51DD7B #C151DD #DD516D

monochromatic

#1D9642 #27C958 #51DD7B #84E7A2 #B7F1C9

Accessibility & contrast

On white

1.75

#51DD7B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.98

#51DD7B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DD7B

11.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DD7B	#FFFFFF	#000000	##000000
##51DD7B	1.00	1.75	11.98	11.98
#FFFFFF	1.75	1.00	21.00	21.00
#000000	11.98	21.00	1.00	1.00
##000000	11.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DECB74

Deuteranopia (green-blind)

#CDBF82

Tritanopia (blue-blind)

#1DD9C5

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #51dd7b;
/* rgb */ color: rgb(81, 221, 123);
/* oklch */ color: oklch(79.9% 0.183 150.0);

Tailwind

colors: {
  custom: {
    50: '#90e9a2',
    500: '#51dd7b',
    950: '#000000',
  },
}

SCSS

$custom: #51dd7b;
$custom-light: #90e9a2;
$custom-dark: #000000;

JSON

{
  "hex": "#51dd7b",
  "rgb": {
    "r": 81,
    "g": 221,
    "b": 123
  },
  "hsl": {
    "h": 138,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.79886,
    "c": 0.18263,
    "h": 150
  },
  "luminance": 0.54892
}

Semantic roles & 50–950 ramp

primary

#51DD7B

secondary

#9B387D

accent

#3EB6EA

background

#FCFEFC

surface

#F5FDF5

border

#CFD5CF

text

#0E160F

muted

#7F8480

Preview Lab

Preview with #51DD7B

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

Preview Lab → · Contrast checker → · Palette generator →