#51A325#51A325

#51A325 is a light, vivid yellow-green. Relative luminance 0.281; OKLCH L 63.9% C 0.176 H 137.2°. Best body text is #000000 at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#51A325
RGB	rgb(81, 163, 37)
HSL	hsl(99, 63%, 39%)
HSV	hsv(99, 77%, 64%)
CMYK	cmyk(50.3%, 0%, 77.3%, 36.1%)
CIE-LAB	lab(59.96, -46.67, 53.68)
CIE-LCH	lch(59.96, 71.13, 131.00°)
OKLab	oklab(63.93% -0.1295 0.1199)
OKLCH	oklch(63.93% 0.176 137.2)
XYZ	xyz(16.8239, 28.0761, 6.2826)
Luminance	0.2808 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A325 #7725A3

analogous

#90A325 #51A325 #25A338

triadic

#51A325 #2551A3 #A32551

tetradic

#51A325 #2590A3 #7725A3 #A33825

square

#51A325 #2590A3 #7725A3 #A33825

split-complementary

#51A325 #3825A3 #A32590

monochromatic

#1F3F0E #38711A #51A325 #6BD134 #8FDC66

Accessibility & contrast

On white

3.17

#51A325 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.62

#51A325 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51A325

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A325	#FFFFFF	#000000	##000000
##51A325	1.00	3.17	6.62	6.62
#FFFFFF	3.17	1.00	21.00	21.00
#000000	6.62	21.00	1.00	1.00
##000000	6.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A99505

Deuteranopia (green-blind)

#9E8E33

Tritanopia (blue-blind)

#4C9D8B

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #51a325;
/* rgb */ color: rgb(81, 163, 37);
/* oklch */ color: oklch(63.9% 0.176 137.2);

Tailwind

colors: {
  custom: {
    50: '#8abf69',
    500: '#51a325',
    950: '#000000',
  },
}

SCSS

$custom: #51a325;
$custom-light: #8abf69;
$custom-dark: #000000;

JSON

{
  "hex": "#51a325",
  "rgb": {
    "r": 81,
    "g": 163,
    "b": 37
  },
  "hsl": {
    "h": 99.048,
    "s": 63,
    "l": 39.216
  },
  "oklch": {
    "l": 0.6393,
    "c": 0.17643,
    "h": 137.2
  },
  "luminance": 0.28077
}

Semantic roles & 50–950 ramp

primary

#51A325

secondary

#A062C2

accent

#42E6AD

background

#F8FBF6

surface

#F0F7EB

border

#CBD0C6

text

#0D1207

muted

#7D817A

Preview Lab

Preview with #51A325

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

Preview Lab → · Contrast checker → · Palette generator →