#51E18D#51E18D

#51E18D is a light, vivid green. Relative luminance 0.575; OKLCH L 81.2% C 0.172 H 154.0°. Best body text is #000000 at 12.50:1 contrast (WCAG AA passes).

Color values

HEX	#51E18D
RGB	rgb(81, 225, 141)
HSL	hsl(145, 71%, 60%)
HSV	hsv(145, 64%, 88%)
CMYK	cmyk(64%, 0%, 37.3%, 11.8%)
CIE-LAB	lab(80.47, -57.02, 30.05)
CIE-LCH	lch(80.47, 64.45, 152.21°)
OKLab	oklab(81.21% -0.1543 0.0751)
OKLCH	oklch(81.21% 0.172 154)
XYZ	xyz(35.1233, 57.5192, 34.4454)
Luminance	0.5752 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E18D #E151A5

analogous

#5DE151 #51E18D #51E1D5

triadic

#51E18D #8D51E1 #E18D51

tetradic

#51E18D #515DE1 #E151A5 #E1D551

square

#51E18D #515DE1 #E151A5 #E1D551

split-complementary

#51E18D #D551E1 #E1515D

monochromatic

#1B9D51 #24D16C #51E18D #85EAAF #B9F3D1

Accessibility & contrast

On white

1.68

#51E18D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.50

#51E18D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E18D

12.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E18D	#FFFFFF	#000000	##000000
##51E18D	1.00	1.68	12.50	12.50
#FFFFFF	1.68	1.00	21.00	21.00
#000000	12.50	21.00	1.00	1.00
##000000	12.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E1D087

Deuteranopia (green-blind)

#CEC292

Tritanopia (blue-blind)

#00DECC

Achromatopsia (no color)

#C8C8C8

Design tokens & code

CSS

--color: #51e18d;
/* rgb */ color: rgb(81, 225, 141);
/* oklch */ color: oklch(81.2% 0.172 154.0);

Tailwind

colors: {
  custom: {
    50: '#90ebaf',
    500: '#51e18d',
    950: '#000000',
  },
}

SCSS

$custom: #51e18d;
$custom-light: #90ebaf;
$custom-dark: #000000;

JSON

{
  "hex": "#51e18d",
  "rgb": {
    "r": 81,
    "g": 225,
    "b": 141
  },
  "hsl": {
    "h": 145,
    "s": 70.588,
    "l": 60
  },
  "oklch": {
    "l": 0.81207,
    "c": 0.1716,
    "h": 154
  },
  "luminance": 0.57523
}

Semantic roles & 50–950 ramp

primary

#51E18D

secondary

#A03674

accent

#3AA3ED

background

#FCFFFD

surface

#F5FEF7

border

#CFD6D0

text

#0E1610

muted

#7F8581

Preview Lab

Preview with #51E18D

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

Preview Lab → · Contrast checker → · Palette generator →