#51D657#51D657

#51D657 is a light, highly saturated green. Relative luminance 0.505; OKLCH L 77.6% C 0.205 H 144.0°. Best body text is #000000 at 11.11:1 contrast (WCAG AA passes).

Color values

HEX#51D657
RGBrgb(81, 214, 87)
HSLhsl(123, 62%, 58%)
HSVhsv(123, 62%, 84%)
CMYKcmyk(62.1%, 0%, 59.3%, 16.1%)
CIE-LABlab(76.39, -61.02, 51.12)
CIE-LCHlch(76.39, 79.60, 140.05°)
OKLaboklab(77.61% -0.1655 0.1203)
OKLCHoklch(77.61% 0.205 144)
XYZxyz(29.1585, 50.5277, 17.2312)
Luminance0.5053 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51D657 #D651D0
analogous
#8DD651 #51D657 #51D69A
triadic
#51D657 #5751D6 #D65751
tetradic
#51D657 #518DD6 #D651D0 #D69A51
square
#51D657 #518DD6 #D651D0 #D69A51
split-complementary
#51D657 #9A51D6 #D6518D
monochromatic
#218C26 #2DBD33 #51D657 #83E287 #B4EDB7

Accessibility & contrast

On white

1.89
#51D657 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

11.11
#51D657 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D657
11.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51D657#FFFFFF#000000##000000
##51D6571.001.8911.1111.11
#FFFFFF1.891.0021.0021.00
#00000011.1121.001.001.00
##00000011.1121.001.001.00

Color blindness preview

Protanopia (red-blind)
#DAC34A
Deuteranopia (green-blind)
#C9B861
Tritanopia (blue-blind)
#34D0BB
Achromatopsia (no color)
#BCBCBC

Design tokens & code

CSS
--color: #51d657;
/* rgb */ color: rgb(81, 214, 87);
/* oklch */ color: oklch(77.6% 0.205 144.0);
Tailwind
colors: {
  custom: {
    50: '#90e48a',
    500: '#51d657',
    950: '#000000',
  },
}
SCSS
$custom: #51d657;
$custom-light: #90e48a;
$custom-dark: #000000;
JSON
{
  "hex": "#51d657",
  "rgb": {
    "r": 81,
    "g": 214,
    "b": 87
  },
  "hsl": {
    "h": 122.707,
    "s": 61.86,
    "l": 57.843
  },
  "oklch": {
    "l": 0.77611,
    "c": 0.20457,
    "h": 144
  },
  "luminance": 0.50531
}

Semantic roles & 50–950 ramp

primary
#51D657
secondary
#923A8E
accent
#43DEE5
background
#FCFEFC
surface
#F5FCF4
border
#CFD5CE
text
#0E160C
muted
#7F847F

Preview Lab

Preview with #51D657

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

Preview Lab → · Contrast checker → · Palette generator →

#51D657 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva