#509D28#509D28

#509D28 is a light, vivid yellow-green. Relative luminance 0.260; OKLCH L 62.3% C 0.168 H 137.2°. Best body text is #000000 at 6.19:1 contrast (WCAG AA passes).

Color values

HEX	#509D28
RGB	rgb(80, 157, 40)
HSL	hsl(99, 59%, 39%)
HSV	hsv(99, 75%, 62%)
CMYK	cmyk(49%, 0%, 74.5%, 38.4%)
CIE-LAB	lab(58.01, -44.39, 50.70)
CIE-LCH	lch(58.01, 67.39, 131.20°)
OKLab	oklab(62.32% -0.1231 0.1141)
OKLCH	oklch(62.32% 0.168 137.2)
XYZ	xyz(15.7478, 25.9715, 6.1903)
Luminance	0.2597 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#509D28 #75289D

analogous

#8A9D28 #509D28 #289D3A

triadic

#509D28 #28509D #9D2850

tetradic

#509D28 #288A9D #75289D #9D3A28

square

#509D28 #288A9D #75289D #9D3A28

split-complementary

#509D28 #3A289D #9D288A

monochromatic

#1E3B0F #376C1C #509D28 #69CC36 #8ED867

Accessibility & contrast

On white

3.39

#509D28 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.19

#509D28 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #509D28

6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##509D28	#FFFFFF	#000000	##000000
##509D28	1.00	3.39	6.19	6.19
#FFFFFF	3.39	1.00	21.00	21.00
#000000	6.19	21.00	1.00	1.00
##000000	6.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A28F11

Deuteranopia (green-blind)

#988934

Tritanopia (blue-blind)

#4B9786

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #509d28;
/* rgb */ color: rgb(80, 157, 40);
/* oklch */ color: oklch(62.3% 0.168 137.2);

Tailwind

colors: {
  custom: {
    50: '#88ba6a',
    500: '#509d28',
    950: '#000000',
  },
}

SCSS

$custom: #509d28;
$custom-light: #88ba6a;
$custom-dark: #000000;

JSON

{
  "hex": "#509d28",
  "rgb": {
    "r": 80,
    "g": 157,
    "b": 40
  },
  "hsl": {
    "h": 99.487,
    "s": 59.391,
    "l": 38.627
  },
  "oklch": {
    "l": 0.62323,
    "c": 0.16783,
    "h": 137.2
  },
  "luminance": 0.25973
}

Semantic roles & 50–950 ramp

primary

#509D28

secondary

#9F62BE

accent

#45E3AD

background

#F8FBF6

surface

#F0F6EB

border

#CBD0C6

text

#0C1207

muted

#7D817A

Preview Lab

Preview with #509D28

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

Preview Lab → · Contrast checker → · Palette generator →