#509E18#509E18

#509E18 is a light, vivid yellow-green. Relative luminance 0.262; OKLCH L 62.5% C 0.177 H 136.1°. Best body text is #000000 at 6.24:1 contrast (WCAG AA passes).

Color values

HEX	#509E18
RGB	rgb(80, 158, 24)
HSL	hsl(95, 74%, 36%)
HSV	hsv(95, 85%, 62%)
CMYK	cmyk(49.4%, 0%, 84.8%, 38%)
CIE-LAB	lab(58.25, -45.70, 55.93)
CIE-LCH	lch(58.25, 72.23, 129.25°)
OKLab	oklab(62.49% -0.1276 0.1227)
OKLCH	oklch(62.49% 0.177 136.1)
XYZ	xyz(15.6996, 26.2241, 5.0985)
Luminance	0.2622 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#509E18 #66189E

analogous

#939E18 #509E18 #189E23

triadic

#509E18 #18509E #9E1850

tetradic

#509E18 #18939E #66189E #9E2318

square

#509E18 #18939E #66189E #9E2318

split-complementary

#509E18 #23189E #9E1893

monochromatic

#1A3408 #356910 #509E18 #6BD320 #8CE44D

Accessibility & contrast

On white

3.36

#509E18 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.24

#509E18 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #509E18

6.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##509E18	#FFFFFF	#000000	##000000
##509E18	1.00	3.36	6.24	6.24
#FFFFFF	3.36	1.00	21.00	21.00
#000000	6.24	21.00	1.00	1.00
##000000	6.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A49000

Deuteranopia (green-blind)

#9A8A29

Tritanopia (blue-blind)

#4C9886

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #509e18;
/* rgb */ color: rgb(80, 158, 24);
/* oklch */ color: oklch(62.5% 0.177 136.1);

Tailwind

colors: {
  custom: {
    50: '#89bb63',
    500: '#509e18',
    950: '#000000',
  },
}

SCSS

$custom: #509e18;
$custom-light: #89bb63;
$custom-dark: #000000;

JSON

{
  "hex": "#509e18",
  "rgb": {
    "r": 80,
    "g": 158,
    "b": 24
  },
  "hsl": {
    "h": 94.925,
    "s": 73.626,
    "l": 35.686
  },
  "oklch": {
    "l": 0.62493,
    "c": 0.17697,
    "h": 136.1
  },
  "luminance": 0.26225
}

Semantic roles & 50–950 ramp

primary

#509E18

secondary

#934CC6

accent

#38F0A3

background

#F8FBF6

surface

#F0F6EB

border

#CBD0C6

text

#0C1206

muted

#7D817A

Preview Lab

Preview with #509E18

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

Preview Lab → · Contrast checker → · Palette generator →