#51E66B#51E66B

#51E66B is a light, highly saturated green. Relative luminance 0.594; OKLCH L 81.9% C 0.208 H 146.4°. Best body text is #000000 at 12.88:1 contrast (WCAG AA passes).

Color values

HEX#51E66B
RGBrgb(81, 230, 107)
HSLhsl(130, 75%, 61%)
HSVhsv(130, 65%, 90%)
CMYKcmyk(64.8%, 0%, 53.5%, 9.8%)
CIE-LABlab(81.51, -64.19, 48.05)
CIE-LCHlch(81.51, 80.18, 143.18°)
OKLaboklab(81.91% -0.1733 0.1151)
OKLCHoklch(81.91% 0.208 146.4)
XYZxyz(34.3416, 59.4009, 23.5628)
Luminance0.5940 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51E66B #E651CC
analogous
#81E651 #51E66B #51E6B5
triadic
#51E66B #6B51E6 #E66B51
tetradic
#51E66B #5181E6 #E651CC #E6B551
square
#51E66B #5181E6 #E651CC #E6B551
split-complementary
#51E66B #B551E6 #E65181
monochromatic
#18A530 #1FDA40 #51E66B #87EE99 #BCF5C6

Accessibility & contrast

On white

1.63
#51E66B on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

12.88
#51E66B on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E66B
12.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51E66B#FFFFFF#000000##000000
##51E66B1.001.6312.8812.88
#FFFFFF1.631.0021.0021.00
#00000012.8821.001.001.00
##00000012.8821.001.001.00

Color blindness preview

Protanopia (red-blind)
#E9D260
Deuteranopia (green-blind)
#D7C674
Tritanopia (blue-blind)
#22E1CA
Achromatopsia (no color)
#CBCBCB

Design tokens & code

CSS
--color: #51e66b;
/* rgb */ color: rgb(81, 230, 107);
/* oklch */ color: oklch(81.9% 0.208 146.4);
Tailwind
colors: {
  custom: {
    50: '#92ef98',
    500: '#51e66b',
    950: '#000000',
  },
}
SCSS
$custom: #51e66b;
$custom-light: #92ef98;
$custom-dark: #000000;
JSON
{
  "hex": "#51e66b",
  "rgb": {
    "r": 81,
    "g": 230,
    "b": 107
  },
  "hsl": {
    "h": 130.47,
    "s": 74.874,
    "l": 60.98
  },
  "oklch": {
    "l": 0.81909,
    "c": 0.20805,
    "h": 146.4
  },
  "luminance": 0.59404
}

Semantic roles & 50–950 ramp

primary
#51E66B
secondary
#A73493
accent
#0EB4D7
background
#FCFFFC
surface
#F5FEF5
border
#CFD6CF
text
#0E170E
muted
#7F857F

Preview Lab

Preview with #51E66B

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

Preview Lab → · Contrast checker → · Palette generator →

#51E66B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva