#509F18#509F18

#509F18 is a light, vivid yellow-green. Relative luminance 0.266; OKLCH L 62.8% C 0.178 H 136.2°. Best body text is #000000 at 6.31:1 contrast (WCAG AA passes).

Color values

HEX	#509F18
RGB	rgb(80, 159, 24)
HSL	hsl(95, 74%, 36%)
HSV	hsv(95, 85%, 62%)
CMYK	cmyk(49.7%, 0%, 84.9%, 37.6%)
CIE-LAB	lab(58.57, -46.09, 56.22)
CIE-LCH	lch(58.57, 72.70, 129.35°)
OKLab	oklab(62.76% -0.1286 0.1233)
OKLCH	oklch(62.76% 0.178 136.2)
XYZ	xyz(15.8708, 26.5666, 5.1555)
Luminance	0.2657 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#509F18 #67189F

analogous

#939F18 #509F18 #189F23

triadic

#509F18 #18509F #9F1850

tetradic

#509F18 #18939F #67189F #9F2318

square

#509F18 #18939F #67189F #9F2318

split-complementary

#509F18 #23189F #9F1893

monochromatic

#1A3508 #356A10 #509F18 #6BD420 #8CE44D

Accessibility & contrast

On white

3.33

#509F18 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.31

#509F18 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #509F18

6.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##509F18	#FFFFFF	#000000	##000000
##509F18	1.00	3.33	6.31	6.31
#FFFFFF	3.33	1.00	21.00	21.00
#000000	6.31	21.00	1.00	1.00
##000000	6.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A59100

Deuteranopia (green-blind)

#9B8A2A

Tritanopia (blue-blind)

#4C9987

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #509f18;
/* rgb */ color: rgb(80, 159, 24);
/* oklch */ color: oklch(62.8% 0.178 136.2);

Tailwind

colors: {
  custom: {
    50: '#89bc63',
    500: '#509f18',
    950: '#000000',
  },
}

SCSS

$custom: #509f18;
$custom-light: #89bc63;
$custom-dark: #000000;

JSON

{
  "hex": "#509f18",
  "rgb": {
    "r": 80,
    "g": 159,
    "b": 24
  },
  "hsl": {
    "h": 95.111,
    "s": 73.77,
    "l": 35.882
  },
  "oklch": {
    "l": 0.62758,
    "c": 0.17815,
    "h": 136.2
  },
  "luminance": 0.26568
}

Semantic roles & 50–950 ramp

primary

#509F18

secondary

#944DC6

accent

#37F0A4

background

#F8FBF6

surface

#F0F6EB

border

#CBD0C6

text

#0C1206

muted

#7D817A

Preview Lab

Preview with #509F18

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

Preview Lab → · Contrast checker → · Palette generator →