#51B22D#51B22D

#51B22D is a light, vivid green. Relative luminance 0.338; OKLCH L 67.9% C 0.190 H 138.8°. Best body text is #000000 at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#51B22D
RGB	rgb(81, 178, 45)
HSL	hsl(104, 60%, 44%)
HSV	hsv(104, 75%, 70%)
CMYK	cmyk(54.5%, 0%, 74.7%, 30.2%)
CIE-LAB	lab(64.79, -51.88, 55.66)
CIE-LCH	lch(64.79, 76.09, 132.99°)
OKLab	oklab(67.92% -0.143 0.1251)
OKLCH	oklch(67.92% 0.19 138.8)
XYZ	xyz(19.7866, 33.7780, 7.9592)
Luminance	0.3378 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B22D #8E2DB2

analogous

#93B22D #51B22D #2DB24B

triadic

#51B22D #2D51B2 #B22D51

tetradic

#51B22D #2D93B2 #8E2DB2 #B24B2D

square

#51B22D #2D93B2 #8E2DB2 #B24B2D

split-complementary

#51B22D #4B2DB2 #B22D93

monochromatic

#255014 #3B8121 #51B22D #6FD14B #96DE7C

Accessibility & contrast

On white

2.71

#51B22D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.76

#51B22D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B22D

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B22D	#FFFFFF	#000000	##000000
##51B22D	1.00	2.71	7.76	7.76
#FFFFFF	2.71	1.00	21.00	21.00
#000000	7.76	21.00	1.00	1.00
##000000	7.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7A212

Deuteranopia (green-blind)

#AB9A3B

Tritanopia (blue-blind)

#48AC98

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #51b22d;
/* rgb */ color: rgb(81, 178, 45);
/* oklch */ color: oklch(67.9% 0.190 138.8);

Tailwind

colors: {
  custom: {
    50: '#8cca6f',
    500: '#51b22d',
    950: '#000000',
  },
}

SCSS

$custom: #51b22d;
$custom-light: #8cca6f;
$custom-dark: #000000;

JSON

{
  "hex": "#51b22d",
  "rgb": {
    "r": 81,
    "g": 178,
    "b": 45
  },
  "hsl": {
    "h": 103.759,
    "s": 59.641,
    "l": 43.725
  },
  "oklch": {
    "l": 0.67923,
    "c": 0.19005,
    "h": 138.8
  },
  "luminance": 0.3378
}

Semantic roles & 50–950 ramp

primary

#51B22D

secondary

#B075C6

accent

#45E3B8

background

#F9FCF7

surface

#F1F8ED

border

#CBD1C8

text

#0D1308

muted

#7E827B

Preview Lab

Preview with #51B22D

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

Preview Lab → · Contrast checker → · Palette generator →