#51B481#51B481

#51B481 is a light, vivid green. Relative luminance 0.360; OKLCH L 69.7% C 0.121 H 158.5°. Best body text is #000000 at 8.20:1 contrast (WCAG AA passes).

Color values

HEX#51B481
RGBrgb(81, 180, 129)
HSLhsl(149, 40%, 51%)
HSVhsv(149, 55%, 71%)
CMYKcmyk(55%, 0%, 28.3%, 29.4%)
CIE-LABlab(66.50, -41.01, 17.43)
CIE-LCHlch(66.50, 44.56, 156.97°)
OKLaboklab(69.68% -0.1123 0.0443)
OKLCHoklch(69.68% 0.121 158.5)
XYZxyz(23.6750, 35.9747, 26.4608)
Luminance0.3598 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51B481 #B45184
analogous
#52B451 #51B481 #51B4B2
triadic
#51B481 #8151B4 #B48151
tetradic
#51B481 #5152B4 #B45184 #B4B251
square
#51B481 #5152B4 #B45184 #B4B251
split-complementary
#51B481 #B251B4 #B45152
monochromatic
#2A6144 #3C8C63 #51B481 #7CC6A0 #A7D9BF

Accessibility & contrast

On white

2.56
#51B481 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.20
#51B481 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B481
8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51B481#FFFFFF#000000##000000
##51B4811.002.568.208.20
#FFFFFF2.561.0021.0021.00
#0000008.2021.001.001.00
##0000008.2021.001.001.00

Color blindness preview

Protanopia (red-blind)
#B2A87E
Deuteranopia (green-blind)
#A49E84
Tritanopia (blue-blind)
#30B3A6
Achromatopsia (no color)
#A2A2A2

Design tokens & code

CSS
--color: #51b481;
/* rgb */ color: rgb(81, 180, 129);
/* oklch */ color: oklch(69.7% 0.121 158.5);
Tailwind
colors: {
  custom: {
    50: '#8acba5',
    500: '#51b481',
    950: '#000000',
  },
}
SCSS
$custom: #51b481;
$custom-light: #8acba5;
$custom-dark: #000000;
JSON
{
  "hex": "#51b481",
  "rgb": {
    "r": 81,
    "g": 180,
    "b": 129
  },
  "hsl": {
    "h": 149.091,
    "s": 39.759,
    "l": 51.176
  },
  "oklch": {
    "l": 0.69684,
    "c": 0.12072,
    "h": 158.5
  },
  "luminance": 0.35977
}

Semantic roles & 50–950 ramp

primary
#51B481
secondary
#C69BB1
accent
#5896D0
background
#F8FCFA
surface
#F0F8F4
border
#CBD1CE
text
#0C130F
muted
#7D827F

Preview Lab

Preview with #51B481

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

Preview Lab → · Contrast checker → · Palette generator →

#51B481 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva