#51CF3B#51CF3B

#51CF3B is a light, highly saturated green. Relative luminance 0.467; OKLCH L 75.6% C 0.216 H 141.0°. Best body text is #000000 at 10.34:1 contrast (WCAG AA passes).

Color values

HEX#51CF3B
RGBrgb(81, 207, 59)
HSLhsl(111, 61%, 52%)
HSVhsv(111, 71%, 81%)
CMYKcmyk(60.9%, 0%, 71.5%, 18.8%)
CIE-LABlab(73.99, -61.27, 59.93)
CIE-LCHlch(73.99, 85.71, 135.63°)
OKLaboklab(75.55% -0.1676 0.1359)
OKLCHoklch(75.55% 0.216 141)
XYZxyz(26.4943, 46.6883, 11.7524)
Luminance0.4669 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51CF3B #B93BCF
analogous
#9BCF3B #51CF3B #3BCF6F
triadic
#51CF3B #3B51CF #CF3B51
tetradic
#51CF3B #3B9BCF #B93BCF #CF6F3B
square
#51CF3B #3B9BCF #B93BCF #CF6F3B
split-complementary
#51CF3B #6F3BCF #CF3B9B
monochromatic
#29731C #3BA528 #51CF3B #7DDB6C #A8E79D

Accessibility & contrast

On white

2.03
#51CF3B on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

10.34
#51CF3B on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CF3B
10.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51CF3B#FFFFFF#000000##000000
##51CF3B1.002.0310.3410.34
#FFFFFF2.031.0021.0021.00
#00000010.3421.001.001.00
##00000010.3421.001.001.00

Color blindness preview

Protanopia (red-blind)
#D4BC22
Deuteranopia (green-blind)
#C5B24A
Tritanopia (blue-blind)
#3EC8B2
Achromatopsia (no color)
#B6B6B6

Design tokens & code

CSS
--color: #51cf3b;
/* rgb */ color: rgb(81, 207, 59);
/* oklch */ color: oklch(75.6% 0.216 141.0);
Tailwind
colors: {
  custom: {
    50: '#90df7a',
    500: '#51cf3b',
    950: '#000000',
  },
}
SCSS
$custom: #51cf3b;
$custom-light: #90df7a;
$custom-dark: #000000;
JSON
{
  "hex": "#51cf3b",
  "rgb": {
    "r": 81,
    "g": 207,
    "b": 59
  },
  "hsl": {
    "h": 111.081,
    "s": 60.656,
    "l": 52.157
  },
  "oklch": {
    "l": 0.75552,
    "c": 0.21577,
    "h": 141
  },
  "luminance": 0.46691
}

Semantic roles & 50–950 ramp

primary
#51CF3B
secondary
#CA93D3
accent
#44E4CC
background
#F9FDF7
surface
#F2FBEE
border
#CCD4C9
text
#0E150A
muted
#7E837C

Preview Lab

Preview with #51CF3B

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

Preview Lab → · Contrast checker → · Palette generator →

#51CF3B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva