#51E663#51E663

#51E663 is a light, highly saturated green. Relative luminance 0.592; OKLCH L 81.8% C 0.215 H 145.3°. Best body text is #000000 at 12.85:1 contrast (WCAG AA passes).

Color values

HEX#51E663
RGBrgb(81, 230, 99)
HSLhsl(127, 75%, 61%)
HSVhsv(127, 65%, 90%)
CMYKcmyk(64.8%, 0%, 57%, 9.8%)
CIE-LABlab(81.42, -65.20, 51.60)
CIE-LCHlch(81.42, 83.15, 141.64°)
OKLaboklab(81.81% -0.1763 0.1223)
OKLCHoklch(81.81% 0.215 145.3)
XYZxyz(33.9401, 59.2403, 21.4478)
Luminance0.5924 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51E663 #E651D4
analogous
#89E651 #51E663 #51E6AD
triadic
#51E663 #6351E6 #E66351
tetradic
#51E663 #5189E6 #E651D4 #E6AD51
square
#51E663 #5189E6 #E651D4 #E6AD51
split-complementary
#51E663 #AD51E6 #E65189
monochromatic
#18A529 #1FDA36 #51E663 #87EE93 #BCF5C3

Accessibility & contrast

On white

1.63
#51E663 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

12.85
#51E663 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E663
12.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51E663#FFFFFF#000000##000000
##51E6631.001.6312.8512.85
#FFFFFF1.631.0021.0021.00
#00000012.8521.001.001.00
##00000012.8521.001.001.00

Color blindness preview

Protanopia (red-blind)
#EAD256
Deuteranopia (green-blind)
#D7C56D
Tritanopia (blue-blind)
#27E0C9
Achromatopsia (no color)
#CACACA

Design tokens & code

CSS
--color: #51e663;
/* rgb */ color: rgb(81, 230, 99);
/* oklch */ color: oklch(81.8% 0.215 145.3);
Tailwind
colors: {
  custom: {
    50: '#92ef93',
    500: '#51e663',
    950: '#000000',
  },
}
SCSS
$custom: #51e663;
$custom-light: #92ef93;
$custom-dark: #000000;
JSON
{
  "hex": "#51e663",
  "rgb": {
    "r": 81,
    "g": 230,
    "b": 99
  },
  "hsl": {
    "h": 127.248,
    "s": 74.874,
    "l": 60.98
  },
  "oklch": {
    "l": 0.81808,
    "c": 0.21458,
    "h": 145.3
  },
  "luminance": 0.59244
}

Semantic roles & 50–950 ramp

primary
#51E663
secondary
#A73499
accent
#0EBFD7
background
#FCFFFC
surface
#F5FEF4
border
#CFD6CE
text
#0E170D
muted
#7F857F

Preview Lab

Preview with #51E663

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

Preview Lab → · Contrast checker → · Palette generator →

#51E663 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva