#509E1B#509E1B

#509E1B is a light, vivid yellow-green. Relative luminance 0.262; OKLCH L 62.5% C 0.176 H 136.3°. Best body text is #000000 at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#509E1B
RGB	rgb(80, 158, 27)
HSL	hsl(96, 71%, 36%)
HSV	hsv(96, 83%, 62%)
CMYK	cmyk(49.4%, 0%, 82.9%, 38%)
CIE-LAB	lab(58.26, -45.56, 55.14)
CIE-LCH	lch(58.26, 71.53, 129.57°)
OKLab	oklab(62.51% -0.127 0.1215)
OKLCH	oklch(62.51% 0.176 136.3)
XYZ	xyz(15.7325, 26.2372, 5.2720)
Luminance	0.2624 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#509E1B #691B9E

analogous

#929E1B #509E1B #1B9E27

triadic

#509E1B #1B509E #9E1B50

tetradic

#509E1B #1B929E #691B9E #9E271B

square

#509E1B #1B929E #691B9E #9E271B

split-complementary

#509E1B #271B9E #9E1B92

monochromatic

#1B3509 #366A12 #509E1B #6AD224 #8CE152

Accessibility & contrast

On white

3.36

#509E1B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.25

#509E1B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #509E1B

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##509E1B	#FFFFFF	#000000	##000000
##509E1B	1.00	3.36	6.25	6.25
#FFFFFF	3.36	1.00	21.00	21.00
#000000	6.25	21.00	1.00	1.00
##000000	6.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A49000

Deuteranopia (green-blind)

#9A8A2B

Tritanopia (blue-blind)

#4C9886

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #509e1b;
/* rgb */ color: rgb(80, 158, 27);
/* oklch */ color: oklch(62.5% 0.176 136.3);

Tailwind

colors: {
  custom: {
    50: '#89bb64',
    500: '#509e1b',
    950: '#000000',
  },
}

SCSS

$custom: #509e1b;
$custom-light: #89bb64;
$custom-dark: #000000;

JSON

{
  "hex": "#509e1b",
  "rgb": {
    "r": 80,
    "g": 158,
    "b": 27
  },
  "hsl": {
    "h": 95.725,
    "s": 70.811,
    "l": 36.275
  },
  "oklch": {
    "l": 0.62507,
    "c": 0.17575,
    "h": 136.3
  },
  "luminance": 0.26238
}

Semantic roles & 50–950 ramp

primary

#509E1B

secondary

#9551C4

accent

#3AEEA5

background

#F8FBF6

surface

#F0F6EB

border

#CBD0C6

text

#0C1206

muted

#7D817A

Preview Lab

Preview with #509E1B

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

Preview Lab → · Contrast checker → · Palette generator →