#509D27#509D27

#509D27 is a light, vivid yellow-green. Relative luminance 0.260; OKLCH L 62.3% C 0.168 H 137.1°. Best body text is #000000 at 6.19:1 contrast (WCAG AA passes).

Color values

HEX	#509D27
RGB	rgb(80, 157, 39)
HSL	hsl(99, 60%, 38%)
HSV	hsv(99, 75%, 62%)
CMYK	cmyk(49%, 0%, 75.2%, 38.4%)
CIE-LAB	lab(58.00, -44.46, 51.06)
CIE-LCH	lch(58.00, 67.70, 131.05°)
OKLab	oklab(62.32% -0.1233 0.1147)
OKLCH	oklch(62.32% 0.168 137.1)
XYZ	xyz(15.7310, 25.9648, 6.1018)
Luminance	0.2597 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#509D27 #74279D

analogous

#8B9D27 #509D27 #279D39

triadic

#509D27 #27509D #9D2750

tetradic

#509D27 #278B9D #74279D #9D3927

square

#509D27 #278B9D #74279D #9D3927

split-complementary

#509D27 #39279D #9D278B

monochromatic

#1E3B0F #376C1B #509D27 #69CD35 #8ED966

Accessibility & contrast

On white

3.39

#509D27 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.19

#509D27 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #509D27

6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##509D27	#FFFFFF	#000000	##000000
##509D27	1.00	3.39	6.19	6.19
#FFFFFF	3.39	1.00	21.00	21.00
#000000	6.19	21.00	1.00	1.00
##000000	6.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A28F0F

Deuteranopia (green-blind)

#988933

Tritanopia (blue-blind)

#4B9786

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #509d27;
/* rgb */ color: rgb(80, 157, 39);
/* oklch */ color: oklch(62.3% 0.168 137.1);

Tailwind

colors: {
  custom: {
    50: '#88ba6a',
    500: '#509d27',
    950: '#000000',
  },
}

SCSS

$custom: #509d27;
$custom-light: #88ba6a;
$custom-dark: #000000;

JSON

{
  "hex": "#509d27",
  "rgb": {
    "r": 80,
    "g": 157,
    "b": 39
  },
  "hsl": {
    "h": 99.153,
    "s": 60.204,
    "l": 38.431
  },
  "oklch": {
    "l": 0.62316,
    "c": 0.16842,
    "h": 137.1
  },
  "luminance": 0.25966
}

Semantic roles & 50–950 ramp

primary

#509D27

secondary

#9E61BF

accent

#44E3AC

background

#F8FBF6

surface

#F0F6EB

border

#CBD0C6

text

#0C1207

muted

#7D817A

Preview Lab

Preview with #509D27

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

Preview Lab → · Contrast checker → · Palette generator →