#509B20#509B20

#509B20 is a mid, vivid yellow-green. Relative luminance 0.253; OKLCH L 61.7% C 0.170 H 136.3°. Best body text is #000000 at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#509B20
RGB	rgb(80, 155, 32)
HSL	hsl(97, 66%, 37%)
HSV	hsv(97, 79%, 61%)
CMYK	cmyk(48.4%, 0%, 79.4%, 39.2%)
CIE-LAB	lab(57.32, -44.10, 52.78)
CIE-LCH	lch(57.32, 68.78, 129.88°)
OKLab	oklab(61.74% -0.1228 0.1172)
OKLCH	oklch(61.74% 0.17 136.3)
XYZ	xyz(15.2899, 25.2514, 5.4346)
Luminance	0.2525 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#509B20 #6B209B

analogous

#8E9B20 #509B20 #209B2D

triadic

#509B20 #20509B #9B2050

tetradic

#509B20 #208E9B #6B209B #9B2D20

square

#509B20 #208E9B #6B209B #9B2D20

split-complementary

#509B20 #2D209B #9B208E

monochromatic

#1C360B #366816 #509B20 #6ACE2A #8CDD59

Accessibility & contrast

On white

3.47

#509B20 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.05

#509B20 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #509B20

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##509B20	#FFFFFF	#000000	##000000
##509B20	1.00	3.47	6.05	6.05
#FFFFFF	3.47	1.00	21.00	21.00
#000000	6.05	21.00	1.00	1.00
##000000	6.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A18D00

Deuteranopia (green-blind)

#97872E

Tritanopia (blue-blind)

#4C9584

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #509b20;
/* rgb */ color: rgb(80, 155, 32);
/* oklch */ color: oklch(61.7% 0.170 136.3);

Tailwind

colors: {
  custom: {
    50: '#89b966',
    500: '#509b20',
    950: '#000000',
  },
}

SCSS

$custom: #509b20;
$custom-light: #89b966;
$custom-dark: #000000;

JSON

{
  "hex": "#509b20",
  "rgb": {
    "r": 80,
    "g": 155,
    "b": 32
  },
  "hsl": {
    "h": 96.585,
    "s": 65.775,
    "l": 36.667
  },
  "oklch": {
    "l": 0.6174,
    "c": 0.16979,
    "h": 136.3
  },
  "luminance": 0.25252
}

Semantic roles & 50–950 ramp

primary

#509B20

secondary

#9756C1

accent

#3FE9A7

background

#F8FBF6

surface

#F0F6EB

border

#CBD0C6

text

#0C1106

muted

#7D807A

Preview Lab

Preview with #509B20

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

Preview Lab → · Contrast checker → · Palette generator →