#51EE5F#51EE5F

#51EE5F is a very light, highly saturated green. Relative luminance 0.637; OKLCH L 83.8% C 0.227 H 144.6°. Best body text is #000000 at 13.75:1 contrast (WCAG AA passes).

Color values

HEX#51EE5F
RGBrgb(81, 238, 95)
HSLhsl(125, 82%, 63%)
HSVhsv(125, 66%, 93%)
CMYKcmyk(66%, 0%, 60.1%, 6.7%)
CIE-LABlab(83.82, -68.39, 56.14)
CIE-LCHlch(83.82, 88.48, 140.62°)
OKLaboklab(83.78% -0.1851 0.1318)
OKLCHoklch(83.78% 0.227 144.6)
XYZxyz(36.0311, 63.7209, 21.2248)
Luminance0.6372 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51EE5F #EE51E0
analogous
#92EE51 #51EE5F #51EEAD
triadic
#51EE5F #5F51EE #EE5F51
tetradic
#51EE5F #5192EE #EE51E0 #EEAD51
square
#51EE5F #5192EE #EE51E0 #EEAD51
split-complementary
#51EE5F #AD51EE #EE5192
monochromatic
#11B320 #19E92C #51EE5F #89F392 #C1F9C6

Accessibility & contrast

On white

1.53
#51EE5F on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

13.75
#51EE5F on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51EE5F
13.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51EE5F#FFFFFF#000000##000000
##51EE5F1.001.5313.7513.75
#FFFFFF1.531.0021.0021.00
#00000013.7521.001.001.00
##00000013.7521.001.001.00

Color blindness preview

Protanopia (red-blind)
#F2D94F
Deuteranopia (green-blind)
#DFCC6B
Tritanopia (blue-blind)
#24E8CF
Achromatopsia (no color)
#D1D1D1

Design tokens & code

CSS
--color: #51ee5f;
/* rgb */ color: rgb(81, 238, 95);
/* oklch */ color: oklch(83.8% 0.227 144.6);
Tailwind
colors: {
  custom: {
    50: '#94f591',
    500: '#51ee5f',
    950: '#000000',
  },
}
SCSS
$custom: #51ee5f;
$custom-light: #94f591;
$custom-dark: #000000;
JSON
{
  "hex": "#51ee5f",
  "rgb": {
    "r": 81,
    "g": 238,
    "b": 95
  },
  "hsl": {
    "h": 125.35,
    "s": 82.199,
    "l": 62.549
  },
  "oklch": {
    "l": 0.83776,
    "c": 0.22721,
    "h": 144.6
  },
  "luminance": 0.63725
}

Semantic roles & 50–950 ramp

primary
#51EE5F
secondary
#B330A7
accent
#07CBDF
background
#FCFFFC
surface
#F5FFF4
border
#CFD7CE
text
#0F170D
muted
#80857F

Preview Lab

Preview with #51EE5F

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

Preview Lab → · Contrast checker → · Palette generator →

#51EE5F Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva