#578B18#578B18

#578B18 is a mid, vivid yellow-green. Relative luminance 0.206; OKLCH L 57.8% C 0.150 H 131.9°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#578B18
RGB	rgb(87, 139, 24)
HSL	hsl(87, 71%, 32%)
HSV	hsv(87, 83%, 55%)
CMYK	cmyk(37.4%, 0%, 82.7%, 45.5%)
CIE-LAB	lab(52.46, -35.33, 50.84)
CIE-LCH	lch(52.46, 61.91, 124.80°)
OKLab	oklab(57.84% -0.1002 0.1118)
OKLCH	oklch(57.84% 0.15 131.9)
XYZ	xyz(13.3278, 20.5569, 4.1296)
Luminance	0.2056 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#578B18 #4C188B

analogous

#8B8518 #578B18 #1E8B18

triadic

#578B18 #18578B #8B1857

tetradic

#578B18 #188B85 #4C188B #8B181E

square

#578B18 #188B85 #4C188B #8B181E

split-complementary

#578B18 #181E8B #85188B

monochromatic

#162306 #36570F #578B18 #78BF21 #96DE3F

Accessibility & contrast

On white

4.11

#578B18 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#578B18 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #578B18

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##578B18	#FFFFFF	#000000	##000000
##578B18	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#918000

Deuteranopia (green-blind)

#8A7C25

Tritanopia (blue-blind)

#588576

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #578b18;
/* rgb */ color: rgb(87, 139, 24);
/* oklch */ color: oklch(57.8% 0.150 131.9);

Tailwind

colors: {
  custom: {
    50: '#8bad60',
    500: '#578b18',
    950: '#000000',
  },
}

SCSS

$custom: #578b18;
$custom-light: #8bad60;
$custom-dark: #000000;

JSON

{
  "hex": "#578b18",
  "rgb": {
    "r": 87,
    "g": 139,
    "b": 24
  },
  "hsl": {
    "h": 87.13,
    "s": 70.552,
    "l": 31.961
  },
  "oklch": {
    "l": 0.57835,
    "c": 0.15012,
    "h": 131.9
  },
  "luminance": 0.20557
}

Semantic roles & 50–950 ramp

primary

#578B18

secondary

#7940BE

accent

#3AED8B

background

#F8FAF6

surface

#F0F4EB

border

#CBCEC6

text

#0C1005

muted

#7D7F7A

Preview Lab

Preview with #578B18

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

Preview Lab → · Contrast checker → · Palette generator →