#51DD8B#51DD8B

#51DD8B is a light, vivid green. Relative luminance 0.553; OKLCH L 80.2% C 0.168 H 154.0°. Best body text is #000000 at 12.07:1 contrast (WCAG AA passes).

Color values

HEX	#51DD8B
RGB	rgb(81, 221, 139)
HSL	hsl(145, 67%, 59%)
HSV	hsv(145, 63%, 87%)
CMYK	cmyk(63.3%, 0%, 37.1%, 13.3%)
CIE-LAB	lab(79.23, -55.85, 29.42)
CIE-LCH	lch(79.23, 63.12, 152.22°)
OKLab	oklab(80.17% -0.1512 0.0736)
OKLCH	oklch(80.17% 0.168 154)
XYZ	xyz(33.9071, 55.3228, 33.3125)
Luminance	0.5533 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DD8B #DD51A3

analogous

#5DDD51 #51DD8B #51DDD1

triadic

#51DD8B #8B51DD #DD8B51

tetradic

#51DD8B #515DDD #DD51A3 #DDD151

square

#51DD8B #515DDD #DD51A3 #DDD151

split-complementary

#51DD8B #D151DD #DD515D

monochromatic

#1D964F #27C96B #51DD8B #84E7AD #B7F1CF

Accessibility & contrast

On white

1.74

#51DD8B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.07

#51DD8B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DD8B

12.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DD8B	#FFFFFF	#000000	##000000
##51DD8B	1.00	1.74	12.07	12.07
#FFFFFF	1.74	1.00	21.00	21.00
#000000	12.07	21.00	1.00	1.00
##000000	12.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DDCC86

Deuteranopia (green-blind)

#CABF90

Tritanopia (blue-blind)

#05DAC8

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #51dd8b;
/* rgb */ color: rgb(81, 221, 139);
/* oklch */ color: oklch(80.2% 0.168 154.0);

Tailwind

colors: {
  custom: {
    50: '#90e8ad',
    500: '#51dd8b',
    950: '#000000',
  },
}

SCSS

$custom: #51dd8b;
$custom-light: #90e8ad;
$custom-dark: #000000;

JSON

{
  "hex": "#51dd8b",
  "rgb": {
    "r": 81,
    "g": 221,
    "b": 139
  },
  "hsl": {
    "h": 144.857,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.80173,
    "c": 0.16812,
    "h": 154
  },
  "luminance": 0.55326
}

Semantic roles & 50–950 ramp

primary

#51DD8B

secondary

#9B3872

accent

#3EA3EA

background

#FCFEFD

surface

#F5FDF7

border

#CFD5D0

text

#0E1610

muted

#7F8481

Preview Lab

Preview with #51DD8B

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

Preview Lab → · Contrast checker → · Palette generator →