#51E091#51E091

#51E091 is a light, vivid green. Relative luminance 0.571; OKLCH L 81.0% C 0.167 H 155.3°. Best body text is #000000 at 12.42:1 contrast (WCAG AA passes).

Color values

HEX	#51E091
RGB	rgb(81, 224, 145)
HSL	hsl(147, 70%, 60%)
HSV	hsv(147, 64%, 88%)
CMYK	cmyk(63.8%, 0%, 35.3%, 12.2%)
CIE-LAB	lab(80.24, -55.90, 27.69)
CIE-LCH	lch(80.24, 62.38, 153.65°)
OKLab	oklab(81.04% -0.1515 0.0695)
OKLCH	oklch(81.04% 0.167 155.3)
XYZ	xyz(35.1567, 57.1013, 35.9514)
Luminance	0.5710 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E091 #E051A0

analogous

#59E051 #51E091 #51E0D8

triadic

#51E091 #9151E0 #E09151

tetradic

#51E091 #5159E0 #E051A0 #E0D851

square

#51E091 #5159E0 #E051A0 #E0D851

split-complementary

#51E091 #D851E0 #E05159

monochromatic

#1C9B55 #25CF71 #51E091 #85E9B2 #B9F3D3

Accessibility & contrast

On white

1.69

#51E091 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.42

#51E091 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E091

12.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E091	#FFFFFF	#000000	##000000
##51E091	1.00	1.69	12.42	12.42
#FFFFFF	1.69	1.00	21.00	21.00
#000000	12.42	21.00	1.00	1.00
##000000	12.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DFCF8C

Deuteranopia (green-blind)

#CDC296

Tritanopia (blue-blind)

#00DECC

Achromatopsia (no color)

#C7C7C7

Design tokens & code

CSS

--color: #51e091;
/* rgb */ color: rgb(81, 224, 145);
/* oklch */ color: oklch(81.0% 0.167 155.3);

Tailwind

colors: {
  custom: {
    50: '#90ebb1',
    500: '#51e091',
    950: '#000000',
  },
}

SCSS

$custom: #51e091;
$custom-light: #90ebb1;
$custom-dark: #000000;

JSON

{
  "hex": "#51e091",
  "rgb": {
    "r": 81,
    "g": 224,
    "b": 145
  },
  "hsl": {
    "h": 146.853,
    "s": 69.756,
    "l": 59.804
  },
  "oklch": {
    "l": 0.81036,
    "c": 0.16669,
    "h": 155.3
  },
  "luminance": 0.57105
}

Semantic roles & 50–950 ramp

primary

#51E091

secondary

#9F3770

accent

#3B9DED

background

#FCFFFD

surface

#F5FEF7

border

#CFD6D0

text

#0E1611

muted

#7F8581

Preview Lab

Preview with #51E091

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

Preview Lab → · Contrast checker → · Palette generator →