#51BB4A#51BB4A

#51BB4A is a light, vivid green. Relative luminance 0.378; OKLCH L 70.5% C 0.181 H 142.3°. Best body text is #000000 at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#51BB4A
RGB	rgb(81, 187, 74)
HSL	hsl(116, 45%, 51%)
HSV	hsv(116, 60%, 73%)
CMYK	cmyk(56.7%, 0%, 60.4%, 26.7%)
CIE-LAB	lab(67.86, -52.63, 47.15)
CIE-LCH	lch(67.86, 70.66, 138.14°)
OKLab	oklab(70.53% -0.1433 0.1106)
OKLCH	oklch(70.53% 0.181 142.3)
XYZ	xyz(22.3985, 37.7824, 12.5896)
Luminance	0.3778 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BB4A #B44ABB

analogous

#89BB4A #51BB4A #4ABB7B

triadic

#51BB4A #4A51BB #BB4A51

tetradic

#51BB4A #4A89BB #B44ABB #BB7B4A

square

#51BB4A #4A89BB #B44ABB #BB7B4A

split-complementary

#51BB4A #7B4ABB #BB4A89

monochromatic

#2A6526 #3C9137 #51BB4A #7CCC76 #A7DCA3

Accessibility & contrast

On white

2.45

#51BB4A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.56

#51BB4A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BB4A

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BB4A	#FFFFFF	#000000	##000000
##51BB4A	1.00	2.45	8.56	8.56
#FFFFFF	2.45	1.00	21.00	21.00
#000000	8.56	21.00	1.00	1.00
##000000	8.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BFAB3E

Deuteranopia (green-blind)

#B1A253

Tritanopia (blue-blind)

#41B6A3

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #51bb4a;
/* rgb */ color: rgb(81, 187, 74);
/* oklch */ color: oklch(70.5% 0.181 142.3);

Tailwind

colors: {
  custom: {
    50: '#8cd080',
    500: '#51bb4a',
    950: '#000000',
  },
}

SCSS

$custom: #51bb4a;
$custom-light: #8cd080;
$custom-dark: #000000;

JSON

{
  "hex": "#51bb4a",
  "rgb": {
    "r": 81,
    "g": 187,
    "b": 74
  },
  "hsl": {
    "h": 116.283,
    "s": 45.382,
    "l": 51.176
  },
  "oklch": {
    "l": 0.70531,
    "c": 0.18106,
    "h": 142.3
  },
  "luminance": 0.37784
}

Semantic roles & 50–950 ramp

primary

#51BB4A

secondary

#C697C9

accent

#53D5CD

background

#F9FCF8

surface

#F1F9EF

border

#CBD2CA

text

#0D140A

muted

#7E827C

Preview Lab

Preview with #51BB4A

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

Preview Lab → · Contrast checker → · Palette generator →