#558B18#558B18

#558B18 is a mid, vivid yellow-green. Relative luminance 0.205; OKLCH L 57.7% C 0.151 H 132.5°. Best body text is #000000 at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#558B18
RGB	rgb(85, 139, 24)
HSL	hsl(88, 71%, 32%)
HSV	hsv(88, 83%, 55%)
CMYK	cmyk(38.8%, 0%, 82.7%, 45.5%)
CIE-LAB	lab(52.36, -36.08, 50.70)
CIE-LCH	lch(52.36, 62.23, 125.43°)
OKLab	oklab(57.72% -0.1021 0.1116)
OKLCH	oklch(57.72% 0.151 132.5)
XYZ	xyz(13.1436, 20.4619, 4.1210)
Luminance	0.2046 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558B18 #4E188B

analogous

#8B8818 #558B18 #1C8B18

triadic

#558B18 #18558B #8B1855

tetradic

#558B18 #188B88 #4E188B #8B181C

square

#558B18 #188B88 #4E188B #8B181C

split-complementary

#558B18 #181C8B #88188B

monochromatic

#152306 #35570F #558B18 #75BF21 #94DE3F

Accessibility & contrast

On white

4.12

#558B18 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.09

#558B18 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558B18

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558B18	#FFFFFF	#000000	##000000
##558B18	1.00	4.12	5.09	5.09
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.09	21.00	1.00	1.00
##000000	5.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#918000

Deuteranopia (green-blind)

#8A7B25

Tritanopia (blue-blind)

#568576

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #558b18;
/* rgb */ color: rgb(85, 139, 24);
/* oklch */ color: oklch(57.7% 0.151 132.5);

Tailwind

colors: {
  custom: {
    50: '#8aad60',
    500: '#558b18',
    950: '#000000',
  },
}

SCSS

$custom: #558b18;
$custom-light: #8aad60;
$custom-dark: #000000;

JSON

{
  "hex": "#558b18",
  "rgb": {
    "r": 85,
    "g": 139,
    "b": 24
  },
  "hsl": {
    "h": 88.174,
    "s": 70.552,
    "l": 31.961
  },
  "oklch": {
    "l": 0.5772,
    "c": 0.1512,
    "h": 132.5
  },
  "luminance": 0.20462
}

Semantic roles & 50–950 ramp

primary

#558B18

secondary

#7C40BE

accent

#3AED8E

background

#F8FAF6

surface

#F0F4EB

border

#CBCEC6

text

#0C1005

muted

#7D7F7A

Preview Lab

Preview with #558B18

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

Preview Lab → · Contrast checker → · Palette generator →