#51DD91#51DD91

#51DD91 is a light, vivid green. Relative luminance 0.555; OKLCH L 80.3% C 0.163 H 155.8°. Best body text is #000000 at 12.10:1 contrast (WCAG AA passes).

Color values

HEX	#51DD91
RGB	rgb(81, 221, 145)
HSL	hsl(147, 67%, 59%)
HSV	hsv(147, 63%, 87%)
CMYK	cmyk(63.3%, 0%, 34.4%, 13.3%)
CIE-LAB	lab(79.33, -54.73, 26.47)
CIE-LCH	lch(79.33, 60.79, 154.19°)
OKLab	oklab(80.29% -0.1485 0.0666)
OKLCH	oklch(80.29% 0.163 155.8)
XYZ	xyz(34.3576, 55.5030, 35.6851)
Luminance	0.5551 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DD91 #DD519D

analogous

#57DD51 #51DD91 #51DDD7

triadic

#51DD91 #9151DD #DD9151

tetradic

#51DD91 #5157DD #DD519D #DDD751

square

#51DD91 #5157DD #DD519D #DDD751

split-complementary

#51DD91 #D751DD #DD5157

monochromatic

#1D9655 #27C971 #51DD91 #84E7B1 #B7F1D2

Accessibility & contrast

On white

1.74

#51DD91 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.10

#51DD91 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DD91

12.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DD91	#FFFFFF	#000000	##000000
##51DD91	1.00	1.74	12.10	12.10
#FFFFFF	1.74	1.00	21.00	21.00
#000000	12.10	21.00	1.00	1.00
##000000	12.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DCCC8C

Deuteranopia (green-blind)

#CABF96

Tritanopia (blue-blind)

#00DBC9

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #51dd91;
/* rgb */ color: rgb(81, 221, 145);
/* oklch */ color: oklch(80.3% 0.163 155.8);

Tailwind

colors: {
  custom: {
    50: '#90e8b1',
    500: '#51dd91',
    950: '#000000',
  },
}

SCSS

$custom: #51dd91;
$custom-light: #90e8b1;
$custom-dark: #000000;

JSON

{
  "hex": "#51dd91",
  "rgb": {
    "r": 81,
    "g": 221,
    "b": 145
  },
  "hsl": {
    "h": 147.429,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.80292,
    "c": 0.16272,
    "h": 155.8
  },
  "luminance": 0.55507
}

Semantic roles & 50–950 ramp

primary

#51DD91

secondary

#9B386D

accent

#3E9BEA

background

#FCFEFD

surface

#F5FDF7

border

#CFD5D0

text

#0E1611

muted

#7F8481

Preview Lab

Preview with #51DD91

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

Preview Lab → · Contrast checker → · Palette generator →