#509F1B#509F1B

#509F1B is a light, vivid yellow-green. Relative luminance 0.266; OKLCH L 62.8% C 0.177 H 136.4°. Best body text is #000000 at 6.32:1 contrast (WCAG AA passes).

Color values

HEX	#509F1B
RGB	rgb(80, 159, 27)
HSL	hsl(96, 71%, 36%)
HSV	hsv(96, 83%, 62%)
CMYK	cmyk(49.7%, 0%, 83%, 37.6%)
CIE-LAB	lab(58.58, -45.96, 55.43)
CIE-LCH	lch(58.58, 72.01, 129.66°)
OKLab	oklab(62.77% -0.1281 0.1221)
OKLCH	oklch(62.77% 0.177 136.4)
XYZ	xyz(15.9038, 26.5798, 5.3291)
Luminance	0.2658 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#509F1B #6A1B9F

analogous

#929F1B #509F1B #1B9F28

triadic

#509F1B #1B509F #9F1B50

tetradic

#509F1B #1B929F #6A1B9F #9F281B

square

#509F1B #1B929F #6A1B9F #9F281B

split-complementary

#509F1B #281B9F #9F1B92

monochromatic

#1B3609 #366B12 #509F1B #6AD324 #8CE253

Accessibility & contrast

On white

3.32

#509F1B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.32

#509F1B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #509F1B

6.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##509F1B	#FFFFFF	#000000	##000000
##509F1B	1.00	3.32	6.32	6.32
#FFFFFF	3.32	1.00	21.00	21.00
#000000	6.32	21.00	1.00	1.00
##000000	6.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A59100

Deuteranopia (green-blind)

#9A8A2B

Tritanopia (blue-blind)

#4C9987

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #509f1b;
/* rgb */ color: rgb(80, 159, 27);
/* oklch */ color: oklch(62.8% 0.177 136.4);

Tailwind

colors: {
  custom: {
    50: '#89bc65',
    500: '#509f1b',
    950: '#000000',
  },
}

SCSS

$custom: #509f1b;
$custom-light: #89bc65;
$custom-dark: #000000;

JSON

{
  "hex": "#509f1b",
  "rgb": {
    "r": 80,
    "g": 159,
    "b": 27
  },
  "hsl": {
    "h": 95.909,
    "s": 70.968,
    "l": 36.471
  },
  "oklch": {
    "l": 0.62772,
    "c": 0.17693,
    "h": 136.4
  },
  "luminance": 0.26581
}

Semantic roles & 50–950 ramp

primary

#509F1B

secondary

#9651C5

accent

#3AEEA6

background

#F8FBF6

surface

#F0F6EB

border

#CBD0C6

text

#0C1206

muted

#7D817A

Preview Lab

Preview with #509F1B

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

Preview Lab → · Contrast checker → · Palette generator →