#51E191#51E191

#51E191 is a light, vivid green. Relative luminance 0.576; OKLCH L 81.3% C 0.168 H 155.2°. Best body text is #000000 at 12.53:1 contrast (WCAG AA passes).

Color values

HEX	#51E191
RGB	rgb(81, 225, 145)
HSL	hsl(147, 71%, 60%)
HSV	hsv(147, 64%, 88%)
CMYK	cmyk(64%, 0%, 35.6%, 11.8%)
CIE-LAB	lab(80.54, -56.28, 28.10)
CIE-LCH	lch(80.54, 62.91, 153.47°)
OKLab	oklab(81.28% -0.1525 0.0705)
OKLCH	oklch(81.28% 0.168 155.2)
XYZ	xyz(35.4263, 57.6404, 36.0413)
Luminance	0.5764 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E191 #E151A1

analogous

#59E151 #51E191 #51E1D9

triadic

#51E191 #9151E1 #E19151

tetradic

#51E191 #5159E1 #E151A1 #E1D951

square

#51E191 #5159E1 #E151A1 #E1D951

split-complementary

#51E191 #D951E1 #E15159

monochromatic

#1B9D55 #24D171 #51E191 #85EAB2 #B9F3D3

Accessibility & contrast

On white

1.68

#51E191 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.53

#51E191 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E191

12.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E191	#FFFFFF	#000000	##000000
##51E191	1.00	1.68	12.53	12.53
#FFFFFF	1.68	1.00	21.00	21.00
#000000	12.53	21.00	1.00	1.00
##000000	12.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E0D08C

Deuteranopia (green-blind)

#CDC396

Tritanopia (blue-blind)

#00DFCC

Achromatopsia (no color)

#C8C8C8

Design tokens & code

CSS

--color: #51e191;
/* rgb */ color: rgb(81, 225, 145);
/* oklch */ color: oklch(81.3% 0.168 155.2);

Tailwind

colors: {
  custom: {
    50: '#90ebb1',
    500: '#51e191',
    950: '#000000',
  },
}

SCSS

$custom: #51e191;
$custom-light: #90ebb1;
$custom-dark: #000000;

JSON

{
  "hex": "#51e191",
  "rgb": {
    "r": 81,
    "g": 225,
    "b": 145
  },
  "hsl": {
    "h": 146.667,
    "s": 70.588,
    "l": 60
  },
  "oklch": {
    "l": 0.81284,
    "c": 0.16801,
    "h": 155.2
  },
  "luminance": 0.57644
}

Semantic roles & 50–950 ramp

primary

#51E191

secondary

#A03671

accent

#3A9EED

background

#FCFFFD

surface

#F5FEF7

border

#CFD6D0

text

#0E1611

muted

#7F8581

Preview Lab

Preview with #51E191

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

Preview Lab → · Contrast checker → · Palette generator →