#509F28#509F28

#509F28 is a light, vivid yellow-green. Relative luminance 0.267; OKLCH L 62.9% C 0.170 H 137.3°. Best body text is #000000 at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#509F28
RGB	rgb(80, 159, 40)
HSL	hsl(100, 60%, 39%)
HSV	hsv(100, 75%, 62%)
CMYK	cmyk(49.7%, 0%, 74.8%, 37.6%)
CIE-LAB	lab(58.65, -45.19, 51.34)
CIE-LCH	lch(58.65, 68.40, 131.36°)
OKLab	oklab(62.85% -0.1252 0.1154)
OKLCH	oklch(62.85% 0.17 137.3)
XYZ	xyz(16.0889, 26.6538, 6.3040)
Luminance	0.2666 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#509F28 #77289F

analogous

#8C9F28 #509F28 #289F3C

triadic

#509F28 #28509F #9F2850

tetradic

#509F28 #288C9F #77289F #9F3C28

square

#509F28 #288C9F #77289F #9F3C28

split-complementary

#509F28 #3C289F #9F288C

monochromatic

#1F3D0F #376E1C #509F28 #6ACD37 #8ED968

Accessibility & contrast

On white

3.32

#509F28 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.33

#509F28 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #509F28

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##509F28	#FFFFFF	#000000	##000000
##509F28	1.00	3.32	6.33	6.33
#FFFFFF	3.32	1.00	21.00	21.00
#000000	6.33	21.00	1.00	1.00
##000000	6.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A49110

Deuteranopia (green-blind)

#9A8B34

Tritanopia (blue-blind)

#4B9988

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #509f28;
/* rgb */ color: rgb(80, 159, 40);
/* oklch */ color: oklch(62.9% 0.170 137.3);

Tailwind

colors: {
  custom: {
    50: '#89bc6a',
    500: '#509f28',
    950: '#000000',
  },
}

SCSS

$custom: #509f28;
$custom-light: #89bc6a;
$custom-dark: #000000;

JSON

{
  "hex": "#509f28",
  "rgb": {
    "r": 80,
    "g": 159,
    "b": 40
  },
  "hsl": {
    "h": 99.832,
    "s": 59.799,
    "l": 39.02
  },
  "oklch": {
    "l": 0.62851,
    "c": 0.17032,
    "h": 137.3
  },
  "luminance": 0.26655
}

Semantic roles & 50–950 ramp

primary

#509F28

secondary

#A064BF

accent

#45E3AE

background

#F8FBF6

surface

#F0F6EB

border

#CBD0C6

text

#0C1207

muted

#7D817A

Preview Lab

Preview with #509F28

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

Preview Lab → · Contrast checker → · Palette generator →