#558C18#558C18

#558C18 is a mid, vivid yellow-green. Relative luminance 0.208; OKLCH L 58.0% C 0.152 H 132.6°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#558C18
RGB	rgb(85, 140, 24)
HSL	hsl(88, 71%, 32%)
HSV	hsv(88, 83%, 55%)
CMYK	cmyk(39.3%, 0%, 82.9%, 45.1%)
CIE-LAB	lab(52.68, -36.51, 51.00)
CIE-LCH	lch(52.68, 62.72, 125.60°)
OKLab	oklab(57.98% -0.1032 0.1122)
OKLCH	oklch(57.98% 0.152 132.6)
XYZ	xyz(13.2891, 20.7528, 4.1695)
Luminance	0.2075 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558C18 #4F188C

analogous

#8C8918 #558C18 #1B8C18

triadic

#558C18 #18558C #8C1855

tetradic

#558C18 #188C89 #4F188C #8C181B

square

#558C18 #188C89 #4F188C #8C181B

split-complementary

#558C18 #181B8C #89188C

monochromatic

#162406 #35580F #558C18 #75C021 #93DE40

Accessibility & contrast

On white

4.08

#558C18 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.15

#558C18 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558C18

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558C18	#FFFFFF	#000000	##000000
##558C18	1.00	4.08	5.15	5.15
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.15	21.00	1.00	1.00
##000000	5.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#928000

Deuteranopia (green-blind)

#8B7C26

Tritanopia (blue-blind)

#568677

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #558c18;
/* rgb */ color: rgb(85, 140, 24);
/* oklch */ color: oklch(58.0% 0.152 132.6);

Tailwind

colors: {
  custom: {
    50: '#8aae60',
    500: '#558c18',
    950: '#000000',
  },
}

SCSS

$custom: #558c18;
$custom-light: #8aae60;
$custom-dark: #000000;

JSON

{
  "hex": "#558c18",
  "rgb": {
    "r": 85,
    "g": 140,
    "b": 24
  },
  "hsl": {
    "h": 88.448,
    "s": 70.732,
    "l": 32.157
  },
  "oklch": {
    "l": 0.57984,
    "c": 0.15246,
    "h": 132.6
  },
  "luminance": 0.20753
}

Semantic roles & 50–950 ramp

primary

#558C18

secondary

#7D41BF

accent

#3AED8F

background

#F8FAF6

surface

#F0F4EB

border

#CBCEC6

text

#0C1005

muted

#7D7F7A

Preview Lab

Preview with #558C18

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

Preview Lab → · Contrast checker → · Palette generator →