#51E191#51E191

#51E191 is a light, vivid green. Relative luminance 0.576; OKLCH L 81.3% C 0.168 H 155.2°. Best body text is #000000 at 12.53:1 contrast (WCAG AA passes).

Color values

HEX#51E191
RGBrgb(81, 225, 145)
HSLhsl(147, 71%, 60%)
HSVhsv(147, 64%, 88%)
CMYKcmyk(64%, 0%, 35.6%, 11.8%)
CIE-LABlab(80.54, -56.28, 28.10)
CIE-LCHlch(80.54, 62.91, 153.47°)
OKLaboklab(81.28% -0.1525 0.0705)
OKLCHoklch(81.28% 0.168 155.2)
XYZxyz(35.4263, 57.6404, 36.0413)
Luminance0.5764 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51E191 #E151A1
analogous
#59E151 #51E191 #51E1D9
triadic
#51E191 #9151E1 #E19151
tetradic
#51E191 #5159E1 #E151A1 #E1D951
square
#51E191 #5159E1 #E151A1 #E1D951
split-complementary
#51E191 #D951E1 #E15159
monochromatic
#1B9D55 #24D171 #51E191 #85EAB2 #B9F3D3

Accessibility & contrast

On white

1.68
#51E191 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

12.53
#51E191 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E191
12.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51E191#FFFFFF#000000##000000
##51E1911.001.6812.5312.53
#FFFFFF1.681.0021.0021.00
#00000012.5321.001.001.00
##00000012.5321.001.001.00

Color blindness preview

Protanopia (red-blind)
#E0D08C
Deuteranopia (green-blind)
#CDC396
Tritanopia (blue-blind)
#00DFCC
Achromatopsia (no color)
#C8C8C8

Design tokens & code

CSS
--color: #51e191;
/* rgb */ color: rgb(81, 225, 145);
/* oklch */ color: oklch(81.3% 0.168 155.2);
Tailwind
colors: {
  custom: {
    50: '#90ebb1',
    500: '#51e191',
    950: '#000000',
  },
}
SCSS
$custom: #51e191;
$custom-light: #90ebb1;
$custom-dark: #000000;
JSON
{
  "hex": "#51e191",
  "rgb": {
    "r": 81,
    "g": 225,
    "b": 145
  },
  "hsl": {
    "h": 146.667,
    "s": 70.588,
    "l": 60
  },
  "oklch": {
    "l": 0.81284,
    "c": 0.16801,
    "h": 155.2
  },
  "luminance": 0.57644
}

Semantic roles & 50–950 ramp

primary
#51E191
secondary
#A03671
accent
#3A9EED
background
#FCFFFD
surface
#F5FEF7
border
#CFD6D0
text
#0E1611
muted
#7F8581

Preview Lab

Preview with #51E191

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

Preview Lab → · Contrast checker → · Palette generator →

#51E191 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva