#509B1F#509B1F

#509B1F is a mid, vivid yellow-green. Relative luminance 0.252; OKLCH L 61.7% C 0.170 H 136.3°. Best body text is #000000 at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#509B1F
RGB	rgb(80, 155, 31)
HSL	hsl(96, 67%, 36%)
HSV	hsv(96, 80%, 61%)
CMYK	cmyk(48.4%, 0%, 80%, 39.2%)
CIE-LAB	lab(57.31, -44.16, 53.09)
CIE-LCH	lch(57.31, 69.05, 129.75°)
OKLab	oklab(61.73% -0.123 0.1177)
OKLCH	oklch(61.73% 0.17 136.3)
XYZ	xyz(15.2765, 25.2461, 5.3641)
Luminance	0.2525 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#509B1F #6A1F9B

analogous

#8E9B1F #509B1F #1F9B2C

triadic

#509B1F #1F509B #9B1F50

tetradic

#509B1F #1F8E9B #6A1F9B #9B2C1F

square

#509B1F #1F8E9B #6A1F9B #9B2C1F

split-complementary

#509B1F #2C1F9B #9B1F8E

monochromatic

#1B350B #366815 #509B1F #6ACE29 #8CDD57

Accessibility & contrast

On white

3.47

#509B1F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.05

#509B1F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #509B1F

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##509B1F	#FFFFFF	#000000	##000000
##509B1F	1.00	3.47	6.05	6.05
#FFFFFF	3.47	1.00	21.00	21.00
#000000	6.05	21.00	1.00	1.00
##000000	6.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A18D00

Deuteranopia (green-blind)

#97872D

Tritanopia (blue-blind)

#4C9584

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #509b1f;
/* rgb */ color: rgb(80, 155, 31);
/* oklch */ color: oklch(61.7% 0.170 136.3);

Tailwind

colors: {
  custom: {
    50: '#89b966',
    500: '#509b1f',
    950: '#000000',
  },
}

SCSS

$custom: #509b1f;
$custom-light: #89b966;
$custom-dark: #000000;

JSON

{
  "hex": "#509b1f",
  "rgb": {
    "r": 80,
    "g": 155,
    "b": 31
  },
  "hsl": {
    "h": 96.29,
    "s": 66.667,
    "l": 36.471
  },
  "oklch": {
    "l": 0.61734,
    "c": 0.17029,
    "h": 136.3
  },
  "luminance": 0.25247
}

Semantic roles & 50–950 ramp

primary

#509B1F

secondary

#9655C1

accent

#3EEAA6

background

#F8FBF6

surface

#F0F6EB

border

#CBD0C6

text

#0C1106

muted

#7D807A

Preview Lab

Preview with #509B1F

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

Preview Lab → · Contrast checker → · Palette generator →