#51B333#51B333

#51B333 is a light, vivid green. Relative luminance 0.342; OKLCH L 68.2% C 0.188 H 139.4°. Best body text is #000000 at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#51B333
RGB	rgb(81, 179, 51)
HSL	hsl(106, 56%, 45%)
HSV	hsv(106, 72%, 70%)
CMYK	cmyk(54.7%, 0%, 71.5%, 29.8%)
CIE-LAB	lab(65.14, -51.81, 53.83)
CIE-LCH	lch(65.14, 74.71, 133.90°)
OKLab	oklab(68.23% -0.1425 0.1221)
OKLCH	oklch(68.23% 0.188 139.4)
XYZ	xyz(20.1102, 34.2269, 8.6781)
Luminance	0.3423 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B333 #9533B3

analogous

#91B333 #51B333 #33B355

triadic

#51B333 #3351B3 #B33351

tetradic

#51B333 #3391B3 #9533B3 #B35533

square

#51B333 #3391B3 #9533B3 #B35533

split-complementary

#51B333 #5533B3 #B33391

monochromatic

#265418 #3B8325 #51B333 #71CE55 #99DC84

Accessibility & contrast

On white

2.68

#51B333 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.85

#51B333 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B333

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B333	#FFFFFF	#000000	##000000
##51B333	1.00	2.68	7.85	7.85
#FFFFFF	2.68	1.00	21.00	21.00
#000000	7.85	21.00	1.00	1.00
##000000	7.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8A31E

Deuteranopia (green-blind)

#AC9B3F

Tritanopia (blue-blind)

#47AD9A

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #51b333;
/* rgb */ color: rgb(81, 179, 51);
/* oklch */ color: oklch(68.2% 0.188 139.4);

Tailwind

colors: {
  custom: {
    50: '#8cca72',
    500: '#51b333',
    950: '#000000',
  },
}

SCSS

$custom: #51b333;
$custom-light: #8cca72;
$custom-dark: #000000;

JSON

{
  "hex": "#51b333",
  "rgb": {
    "r": 81,
    "g": 179,
    "b": 51
  },
  "hsl": {
    "h": 105.938,
    "s": 55.652,
    "l": 45.098
  },
  "oklch": {
    "l": 0.68229,
    "c": 0.18767,
    "h": 139.4
  },
  "luminance": 0.34229
}

Semantic roles & 50–950 ramp

primary

#51B333

secondary

#B47CC6

accent

#49DFBC

background

#F9FCF7

surface

#F1F8ED

border

#CBD1C8

text

#0D1308

muted

#7E827B

Preview Lab

Preview with #51B333

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

Preview Lab → · Contrast checker → · Palette generator →