#509C28#509C28

#509C28 is a light, vivid yellow-green. Relative luminance 0.256; OKLCH L 62.1% C 0.167 H 137.1°. Best body text is #000000 at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#509C28
RGB	rgb(80, 156, 40)
HSL	hsl(99, 59%, 38%)
HSV	hsv(99, 74%, 61%)
CMYK	cmyk(48.7%, 0%, 74.4%, 38.8%)
CIE-LAB	lab(57.69, -43.99, 50.38)
CIE-LCH	lch(57.69, 66.88, 131.13°)
OKLab	oklab(62.06% -0.122 0.1134)
OKLCH	oklch(62.06% 0.167 137.1)
XYZ	xyz(15.5793, 25.6346, 6.1341)
Luminance	0.2564 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#509C28 #74289C

analogous

#8A9C28 #509C28 #289C3A

triadic

#509C28 #28509C #9C2850

tetradic

#509C28 #288A9C #74289C #9C3A28

square

#509C28 #288A9C #74289C #9C3A28

split-complementary

#509C28 #3A289C #9C288A

monochromatic

#1E3B0F #376B1C #509C28 #69CB36 #8ED867

Accessibility & contrast

On white

3.43

#509C28 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.13

#509C28 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #509C28

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##509C28	#FFFFFF	#000000	##000000
##509C28	1.00	3.43	6.13	6.13
#FFFFFF	3.43	1.00	21.00	21.00
#000000	6.13	21.00	1.00	1.00
##000000	6.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A18F12

Deuteranopia (green-blind)

#978834

Tritanopia (blue-blind)

#4C9686

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #509c28;
/* rgb */ color: rgb(80, 156, 40);
/* oklch */ color: oklch(62.1% 0.167 137.1);

Tailwind

colors: {
  custom: {
    50: '#88ba6a',
    500: '#509c28',
    950: '#000000',
  },
}

SCSS

$custom: #509c28;
$custom-light: #88ba6a;
$custom-dark: #000000;

JSON

{
  "hex": "#509c28",
  "rgb": {
    "r": 80,
    "g": 156,
    "b": 40
  },
  "hsl": {
    "h": 99.31,
    "s": 59.184,
    "l": 38.431
  },
  "oklch": {
    "l": 0.62059,
    "c": 0.16657,
    "h": 137.1
  },
  "luminance": 0.25636
}

Semantic roles & 50–950 ramp

primary

#509C28

secondary

#9E62BE

accent

#45E2AC

background

#F8FBF6

surface

#F0F6EB

border

#CBD0C6

text

#0C1107

muted

#7D807A

Preview Lab

Preview with #509C28

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

Preview Lab → · Contrast checker → · Palette generator →