#51B229#51B229

#51B229 is a light, vivid green. Relative luminance 0.338; OKLCH L 67.9% C 0.192 H 138.5°. Best body text is #000000 at 7.75:1 contrast (WCAG AA passes).

Color values

HEX	#51B229
RGB	rgb(81, 178, 41)
HSL	hsl(102, 63%, 43%)
HSV	hsv(102, 77%, 70%)
CMYK	cmyk(54.5%, 0%, 77%, 30.2%)
CIE-LAB	lab(64.76, -52.15, 57.00)
CIE-LCH	lch(64.76, 77.25, 132.46°)
OKLab	oklab(67.9% -0.144 0.1274)
OKLCH	oklch(67.9% 0.192 138.5)
XYZ	xyz(19.7132, 33.7486, 7.5727)
Luminance	0.3375 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B229 #8A29B2

analogous

#95B229 #51B229 #29B246

triadic

#51B229 #2951B2 #B22951

tetradic

#51B229 #2995B2 #8A29B2 #B24629

square

#51B229 #2995B2 #8A29B2 #B24629

split-complementary

#51B229 #4629B2 #B22995

monochromatic

#244F12 #3A801E #51B229 #6ED444 #95DF76

Accessibility & contrast

On white

2.71

#51B229 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.75

#51B229 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B229

7.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B229	#FFFFFF	#000000	##000000
##51B229	1.00	2.71	7.75	7.75
#FFFFFF	2.71	1.00	21.00	21.00
#000000	7.75	21.00	1.00	1.00
##000000	7.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8A205

Deuteranopia (green-blind)

#AB9A38

Tritanopia (blue-blind)

#48AC98

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #51b229;
/* rgb */ color: rgb(81, 178, 41);
/* oklch */ color: oklch(67.9% 0.192 138.5);

Tailwind

colors: {
  custom: {
    50: '#8cca6d',
    500: '#51b229',
    950: '#000000',
  },
}

SCSS

$custom: #51b229;
$custom-light: #8cca6d;
$custom-dark: #000000;

JSON

{
  "hex": "#51b229",
  "rgb": {
    "r": 81,
    "g": 178,
    "b": 41
  },
  "hsl": {
    "h": 102.482,
    "s": 62.557,
    "l": 42.941
  },
  "oklch": {
    "l": 0.67896,
    "c": 0.19224,
    "h": 138.5
  },
  "luminance": 0.3375
}

Semantic roles & 50–950 ramp

primary

#51B229

secondary

#AE70C7

accent

#42E6B6

background

#F9FCF6

surface

#F1F8EC

border

#CBD1C7

text

#0D1308

muted

#7E827B

Preview Lab

Preview with #51B229

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

Preview Lab → · Contrast checker → · Palette generator →