#51BB5A#51BB5A

#51BB5A is a light, vivid green. Relative luminance 0.380; OKLCH L 70.7% C 0.167 H 145.1°. Best body text is #000000 at 8.61:1 contrast (WCAG AA passes).

Color values

HEX#51BB5A
RGBrgb(81, 187, 90)
HSLhsl(125, 44%, 53%)
HSVhsv(125, 57%, 73%)
CMYKcmyk(56.7%, 0%, 51.9%, 26.7%)
CIE-LABlab(68.04, -50.63, 39.80)
CIE-LCHlch(68.04, 64.40, 141.83°)
OKLaboklab(70.74% -0.1373 0.0958)
OKLCHoklch(70.74% 0.167 145.1)
XYZxyz(23.0078, 38.0261, 15.7982)
Luminance0.3803 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51BB5A #BB51B2
analogous
#7DBB51 #51BB5A #51BB8F
triadic
#51BB5A #5A51BB #BB5A51
tetradic
#51BB5A #517DBB #BB51B2 #BB8F51
square
#51BB5A #517DBB #BB51B2 #BB8F51
split-complementary
#51BB5A #8F51BB #BB517D
monochromatic
#29692E #3A9542 #51BB5A #7DCC84 #A9DDAD

Accessibility & contrast

On white

2.44
#51BB5A on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.61
#51BB5A on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BB5A
8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51BB5A#FFFFFF#000000##000000
##51BB5A1.002.448.618.61
#FFFFFF2.441.0021.0021.00
#0000008.6121.001.001.00
##0000008.6121.001.001.00

Color blindness preview

Protanopia (red-blind)
#BEAC52
Deuteranopia (green-blind)
#B0A261
Tritanopia (blue-blind)
#3DB7A5
Achromatopsia (no color)
#A6A6A6

Design tokens & code

CSS
--color: #51bb5a;
/* rgb */ color: rgb(81, 187, 90);
/* oklch */ color: oklch(70.7% 0.167 145.1);
Tailwind
colors: {
  custom: {
    50: '#8bd08b',
    500: '#51bb5a',
    950: '#000000',
  },
}
SCSS
$custom: #51bb5a;
$custom-light: #8bd08b;
$custom-dark: #000000;
JSON
{
  "hex": "#51bb5a",
  "rgb": {
    "r": 81,
    "g": 187,
    "b": 90
  },
  "hsl": {
    "h": 125.094,
    "s": 43.802,
    "l": 52.549
  },
  "oklch": {
    "l": 0.70738,
    "c": 0.16737,
    "h": 145.1
  },
  "luminance": 0.38028
}

Semantic roles & 50–950 ramp

primary
#51BB5A
secondary
#CB9DC7
accent
#54C9D4
background
#F9FCF8
surface
#F1F9F0
border
#CBD2CB
text
#0D140C
muted
#7E827D

Preview Lab

Preview with #51BB5A

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

Preview Lab → · Contrast checker → · Palette generator →

#51BB5A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva