#51E566#51E566

#51E566 is a light, highly saturated green. Relative luminance 0.587; OKLCH L 81.6% C 0.211 H 145.7°. Best body text is #000000 at 12.75:1 contrast (WCAG AA passes).

Color values

HEX#51E566
RGBrgb(81, 229, 102)
HSLhsl(129, 74%, 61%)
HSVhsv(129, 65%, 90%)
CMYKcmyk(64.6%, 0%, 55.5%, 10.2%)
CIE-LABlab(81.15, -64.48, 49.92)
CIE-LCHlch(81.15, 81.55, 142.25°)
OKLaboklab(81.59% -0.1743 0.1189)
OKLCHoklch(81.59% 0.211 145.7)
XYZxyz(33.8087, 58.7438, 22.1248)
Luminance0.5875 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51E566 #E551D0
analogous
#86E551 #51E566 #51E5B0
triadic
#51E566 #6651E5 #E56651
tetradic
#51E566 #5186E5 #E551D0 #E5B051
square
#51E566 #5186E5 #E551D0 #E5B051
split-complementary
#51E566 #B051E5 #E55186
monochromatic
#18A32C #20D83A #51E566 #86ED95 #BBF5C4

Accessibility & contrast

On white

1.65
#51E566 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

12.75
#51E566 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E566
12.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51E566#FFFFFF#000000##000000
##51E5661.001.6512.7512.75
#FFFFFF1.651.0021.0021.00
#00000012.7521.001.001.00
##00000012.7521.001.001.00

Color blindness preview

Protanopia (red-blind)
#E8D15A
Deuteranopia (green-blind)
#D6C570
Tritanopia (blue-blind)
#26E0C9
Achromatopsia (no color)
#CACACA

Design tokens & code

CSS
--color: #51e566;
/* rgb */ color: rgb(81, 229, 102);
/* oklch */ color: oklch(81.6% 0.211 145.7);
Tailwind
colors: {
  custom: {
    50: '#92ee95',
    500: '#51e566',
    950: '#000000',
  },
}
SCSS
$custom: #51e566;
$custom-light: #92ee95;
$custom-dark: #000000;
JSON
{
  "hex": "#51e566",
  "rgb": {
    "r": 81,
    "g": 229,
    "b": 102
  },
  "hsl": {
    "h": 128.514,
    "s": 74,
    "l": 60.784
  },
  "oklch": {
    "l": 0.81592,
    "c": 0.21095,
    "h": 145.7
  },
  "luminance": 0.58747
}

Semantic roles & 50–950 ramp

primary
#51E566
secondary
#A63596
accent
#0FBAD6
background
#FCFFFC
surface
#F5FEF4
border
#CFD6CE
text
#0E160D
muted
#7F857F

Preview Lab

Preview with #51E566

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

Preview Lab → · Contrast checker → · Palette generator →

#51E566 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva