#51A323#51A323

#51A323 is a light, vivid yellow-green. Relative luminance 0.281; OKLCH L 63.9% C 0.177 H 137.1°. Best body text is #000000 at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#51A323
RGB	rgb(81, 163, 35)
HSL	hsl(98, 65%, 39%)
HSV	hsv(98, 79%, 64%)
CMYK	cmyk(50.3%, 0%, 78.5%, 36.1%)
CIE-LAB	lab(59.95, -46.79, 54.32)
CIE-LCH	lch(59.95, 71.70, 130.74°)
OKLab	oklab(63.92% -0.1299 0.1209)
OKLCH	oklch(63.92% 0.177 137.1)
XYZ	xyz(16.7934, 28.0639, 6.1217)
Luminance	0.2807 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A323 #7523A3

analogous

#91A323 #51A323 #23A335

triadic

#51A323 #2351A3 #A32351

tetradic

#51A323 #2391A3 #7523A3 #A33523

square

#51A323 #2391A3 #7523A3 #A33523

split-complementary

#51A323 #3523A3 #A32391

monochromatic

#1F3E0D #387118 #51A323 #6BD331 #8FDD63

Accessibility & contrast

On white

3.18

#51A323 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.61

#51A323 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51A323

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A323	#FFFFFF	#000000	##000000
##51A323	1.00	3.18	6.61	6.61
#FFFFFF	3.18	1.00	21.00	21.00
#000000	6.61	21.00	1.00	1.00
##000000	6.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A99500

Deuteranopia (green-blind)

#9E8E31

Tritanopia (blue-blind)

#4C9D8B

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #51a323;
/* rgb */ color: rgb(81, 163, 35);
/* oklch */ color: oklch(63.9% 0.177 137.1);

Tailwind

colors: {
  custom: {
    50: '#8abf68',
    500: '#51a323',
    950: '#000000',
  },
}

SCSS

$custom: #51a323;
$custom-light: #8abf68;
$custom-dark: #000000;

JSON

{
  "hex": "#51a323",
  "rgb": {
    "r": 81,
    "g": 163,
    "b": 35
  },
  "hsl": {
    "h": 98.438,
    "s": 64.646,
    "l": 38.824
  },
  "oklch": {
    "l": 0.63918,
    "c": 0.17748,
    "h": 137.1
  },
  "luminance": 0.28065
}

Semantic roles & 50–950 ramp

primary

#51A323

secondary

#9F5FC3

accent

#40E8AB

background

#F8FBF6

surface

#F0F7EB

border

#CBD0C6

text

#0D1207

muted

#7D817A

Preview Lab

Preview with #51A323

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

Preview Lab → · Contrast checker → · Palette generator →