#509B19#509B19

#509B19 is a mid, vivid yellow-green. Relative luminance 0.252; OKLCH L 61.7% C 0.173 H 135.9°. Best body text is #000000 at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#509B19
RGB	rgb(80, 155, 25)
HSL	hsl(95, 72%, 35%)
HSV	hsv(95, 84%, 61%)
CMYK	cmyk(48.4%, 0%, 83.9%, 39.2%)
CIE-LAB	lab(57.29, -44.47, 54.80)
CIE-LCH	lch(57.29, 70.57, 129.05°)
OKLab	oklab(61.7% -0.1242 0.1204)
OKLCH	oklch(61.7% 0.173 135.9)
XYZ	xyz(15.2047, 25.2173, 4.9858)
Luminance	0.2522 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#509B19 #64199B

analogous

#919B19 #509B19 #199B23

triadic

#509B19 #19509B #9B1950

tetradic

#509B19 #19919B #64199B #9B2319

square

#509B19 #19919B #64199B #9B2319

split-complementary

#509B19 #23199B #9B1991

monochromatic

#1A3208 #356611 #509B19 #6BD022 #8CE24C

Accessibility & contrast

On white

3.47

#509B19 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.04

#509B19 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #509B19

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##509B19	#FFFFFF	#000000	##000000
##509B19	1.00	3.47	6.04	6.04
#FFFFFF	3.47	1.00	21.00	21.00
#000000	6.04	21.00	1.00	1.00
##000000	6.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A18D00

Deuteranopia (green-blind)

#978729

Tritanopia (blue-blind)

#4D9584

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #509b19;
/* rgb */ color: rgb(80, 155, 25);
/* oklch */ color: oklch(61.7% 0.173 135.9);

Tailwind

colors: {
  custom: {
    50: '#89b963',
    500: '#509b19',
    950: '#000000',
  },
}

SCSS

$custom: #509b19;
$custom-light: #89b963;
$custom-dark: #000000;

JSON

{
  "hex": "#509b19",
  "rgb": {
    "r": 80,
    "g": 155,
    "b": 25
  },
  "hsl": {
    "h": 94.615,
    "s": 72.222,
    "l": 35.294
  },
  "oklch": {
    "l": 0.61703,
    "c": 0.17301,
    "h": 135.9
  },
  "luminance": 0.25218
}

Semantic roles & 50–950 ramp

primary

#509B19

secondary

#914CC4

accent

#39EFA2

background

#F8FBF6

surface

#F0F6EB

border

#CBD0C6

text

#0C1106

muted

#7D807A

Preview Lab

Preview with #509B19

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

Preview Lab → · Contrast checker → · Palette generator →