#51B73F#51B73F

#51B73F is a light, vivid green. Relative luminance 0.360; OKLCH L 69.4% C 0.184 H 140.8°. Best body text is #000000 at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#51B73F
RGB	rgb(81, 183, 63)
HSL	hsl(111, 49%, 48%)
HSV	hsv(111, 66%, 72%)
CMYK	cmyk(55.7%, 0%, 65.6%, 28.2%)
CIE-LAB	lab(66.50, -52.26, 50.45)
CIE-LCH	lch(66.50, 72.64, 136.01°)
OKLab	oklab(69.38% -0.143 0.1165)
OKLCH	oklch(69.38% 0.184 140.8)
XYZ	xyz(21.2231, 35.9734, 10.5268)
Luminance	0.3598 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B73F #A53FB7

analogous

#8DB73F #51B73F #3FB769

triadic

#51B73F #3F51B7 #B73F51

tetradic

#51B73F #3F8DB7 #A53FB7 #B7693F

square

#51B73F #3F8DB7 #A53FB7 #B7693F

split-complementary

#51B73F #693FB7 #B73F8D

monochromatic

#295C20 #3D892F #51B73F #77CB68 #A0DB96

Accessibility & contrast

On white

2.56

#51B73F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.20

#51B73F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B73F

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B73F	#FFFFFF	#000000	##000000
##51B73F	1.00	2.56	8.20	8.20
#FFFFFF	2.56	1.00	21.00	21.00
#000000	8.20	21.00	1.00	1.00
##000000	8.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BCA730

Deuteranopia (green-blind)

#AF9E49

Tritanopia (blue-blind)

#44B19E

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #51b73f;
/* rgb */ color: rgb(81, 183, 63);
/* oklch */ color: oklch(69.4% 0.184 140.8);

Tailwind

colors: {
  custom: {
    50: '#8ccd79',
    500: '#51b73f',
    950: '#000000',
  },
}

SCSS

$custom: #51b73f;
$custom-light: #8ccd79;
$custom-dark: #000000;

JSON

{
  "hex": "#51b73f",
  "rgb": {
    "r": 81,
    "g": 183,
    "b": 63
  },
  "hsl": {
    "h": 111,
    "s": 48.78,
    "l": 48.235
  },
  "oklch": {
    "l": 0.69378,
    "c": 0.18443,
    "h": 140.8
  },
  "luminance": 0.35975
}

Semantic roles & 50–950 ramp

primary

#51B73F

secondary

#BD8BC6

accent

#4FD8C4

background

#F9FCF7

surface

#F1F9EE

border

#CBD2C9

text

#0D1409

muted

#7E827B

Preview Lab

Preview with #51B73F

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

Preview Lab → · Contrast checker → · Palette generator →