#509B23#509B23

#509B23 is a mid, vivid yellow-green. Relative luminance 0.253; OKLCH L 61.8% C 0.168 H 136.6°. Best body text is #000000 at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#509B23
RGB	rgb(80, 155, 35)
HSL	hsl(98, 63%, 37%)
HSV	hsv(98, 77%, 61%)
CMYK	cmyk(48.4%, 0%, 77.4%, 39.2%)
CIE-LAB	lab(57.34, -43.92, 51.80)
CIE-LCH	lch(57.34, 67.92, 130.29°)
OKLab	oklab(61.76% -0.1221 0.1157)
OKLCH	oklch(61.76% 0.168 136.6)
XYZ	xyz(15.3325, 25.2685, 5.6592)
Luminance	0.2527 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#509B23 #6E239B

analogous

#8C9B23 #509B23 #239B32

triadic

#509B23 #23509B #9B2350

tetradic

#509B23 #238C9B #6E239B #9B3223

square

#509B23 #238C9B #6E239B #9B3223

split-complementary

#509B23 #32239B #9B238C

monochromatic

#1C370C #366918 #509B23 #6ACD2E #8DDB5E

Accessibility & contrast

On white

3.47

#509B23 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.05

#509B23 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #509B23

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##509B23	#FFFFFF	#000000	##000000
##509B23	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)

#A08E05

Deuteranopia (green-blind)

#978730

Tritanopia (blue-blind)

#4C9584

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #509b23;
/* rgb */ color: rgb(80, 155, 35);
/* oklch */ color: oklch(61.8% 0.168 136.6);

Tailwind

colors: {
  custom: {
    50: '#88b967',
    500: '#509b23',
    950: '#000000',
  },
}

SCSS

$custom: #509b23;
$custom-light: #88b967;
$custom-dark: #000000;

JSON

{
  "hex": "#509b23",
  "rgb": {
    "r": 80,
    "g": 155,
    "b": 35
  },
  "hsl": {
    "h": 97.5,
    "s": 63.158,
    "l": 37.255
  },
  "oklch": {
    "l": 0.61759,
    "c": 0.16821,
    "h": 136.6
  },
  "luminance": 0.2527
}

Semantic roles & 50–950 ramp

primary

#509B23

secondary

#9A5ABF

accent

#42E6A8

background

#F8FBF6

surface

#F0F6EB

border

#CBD0C6

text

#0C1106

muted

#7D807A

Preview Lab

Preview with #509B23

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

Preview Lab → · Contrast checker → · Palette generator →