#558F18#558F18

#558F18 is a mid, vivid yellow-green. Relative luminance 0.216; OKLCH L 58.8% C 0.156 H 133.1°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#558F18
RGB	rgb(85, 143, 24)
HSL	hsl(89, 71%, 33%)
HSV	hsv(89, 83%, 56%)
CMYK	cmyk(40.6%, 0%, 83.2%, 43.9%)
CIE-LAB	lab(53.64, -37.82, 51.88)
CIE-LCH	lch(53.64, 64.20, 126.09°)
OKLab	oklab(58.78% -0.1068 0.114)
OKLCH	oklch(58.78% 0.156 133.1)
XYZ	xyz(13.7334, 21.6415, 4.3176)
Luminance	0.2164 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558F18 #52188F

analogous

#8F8D18 #558F18 #198F18

triadic

#558F18 #18558F #8F1855

tetradic

#558F18 #188F8D #52188F #8F1819

square

#558F18 #188F8D #52188F #8F1819

split-complementary

#558F18 #18198F #8D188F

monochromatic

#172606 #365B0F #558F18 #74C321 #93DF42

Accessibility & contrast

On white

3.94

#558F18 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.33

#558F18 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558F18

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558F18	#FFFFFF	#000000	##000000
##558F18	1.00	3.94	5.33	5.33
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.33	21.00	1.00	1.00
##000000	5.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#958300

Deuteranopia (green-blind)

#8D7F26

Tritanopia (blue-blind)

#55897A

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #558f18;
/* rgb */ color: rgb(85, 143, 24);
/* oklch */ color: oklch(58.8% 0.156 133.1);

Tailwind

colors: {
  custom: {
    50: '#8ab061',
    500: '#558f18',
    950: '#000000',
  },
}

SCSS

$custom: #558f18;
$custom-light: #8ab061;
$custom-dark: #000000;

JSON

{
  "hex": "#558f18",
  "rgb": {
    "r": 85,
    "g": 143,
    "b": 24
  },
  "hsl": {
    "h": 89.244,
    "s": 71.257,
    "l": 32.745
  },
  "oklch": {
    "l": 0.58775,
    "c": 0.1562,
    "h": 133.1
  },
  "luminance": 0.21642
}

Semantic roles & 50–950 ramp

primary

#558F18

secondary

#8043C0

accent

#3AEE92

background

#F8FAF6

surface

#F0F5EB

border

#CBCFC6

text

#0C1005

muted

#7D7F7A

Preview Lab

Preview with #558F18

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

Preview Lab → · Contrast checker → · Palette generator →