#51B243#51B243

#51B243 is a light, vivid green. Relative luminance 0.340; OKLCH L 68.1% C 0.175 H 141.2°. Best body text is #000000 at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#51B243
RGB	rgb(81, 178, 67)
HSL	hsl(112, 45%, 48%)
HSV	hsv(112, 62%, 70%)
CMYK	cmyk(54.5%, 0%, 62.4%, 30.2%)
CIE-LAB	lab(64.96, -49.95, 47.00)
CIE-LCH	lch(64.96, 68.59, 136.74°)
OKLab	oklab(68.12% -0.1365 0.1096)
OKLCH	oklch(68.12% 0.175 141.2)
XYZ	xyz(20.3259, 33.9937, 10.7994)
Luminance	0.3399 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B243 #A443B2

analogous

#89B243 #51B243 #43B26C

triadic

#51B243 #4351B2 #B24351

tetradic

#51B243 #4389B2 #A443B2 #B26C43

square

#51B243 #4389B2 #A443B2 #B26C43

split-complementary

#51B243 #6C43B2 #B24389

monochromatic

#295922 #3D8632 #51B243 #77C76B #A0D897

Accessibility & contrast

On white

2.69

#51B243 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.80

#51B243 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B243

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B243	#FFFFFF	#000000	##000000
##51B243	1.00	2.69	7.80	7.80
#FFFFFF	2.69	1.00	21.00	21.00
#000000	7.80	21.00	1.00	1.00
##000000	7.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6A336

Deuteranopia (green-blind)

#AA9A4C

Tritanopia (blue-blind)

#45AD9A

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #51b243;
/* rgb */ color: rgb(81, 178, 67);
/* oklch */ color: oklch(68.1% 0.175 141.2);

Tailwind

colors: {
  custom: {
    50: '#8bca7b',
    500: '#51b243',
    950: '#000000',
  },
}

SCSS

$custom: #51b243;
$custom-light: #8bca7b;
$custom-dark: #000000;

JSON

{
  "hex": "#51b243",
  "rgb": {
    "r": 81,
    "g": 178,
    "b": 67
  },
  "hsl": {
    "h": 112.432,
    "s": 45.306,
    "l": 48.039
  },
  "oklch": {
    "l": 0.68119,
    "c": 0.17505,
    "h": 141.2
  },
  "luminance": 0.33995
}

Semantic roles & 50–950 ramp

primary

#51B243

secondary

#BD8DC4

accent

#53D5C5

background

#F9FCF7

surface

#F1F8EE

border

#CBD1C9

text

#0D130A

muted

#7E827C

Preview Lab

Preview with #51B243

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

Preview Lab → · Contrast checker → · Palette generator →