#18573B#18573B

#18573B is a dark, moderate teal. Relative luminance 0.073; OKLCH L 40.9% C 0.079 H 160.1°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#18573B
RGB	rgb(24, 87, 59)
HSL	hsl(153, 57%, 22%)
HSV	hsv(153, 72%, 34%)
CMYK	cmyk(72.4%, 0%, 32.2%, 65.9%)
CIE-LAB	lab(32.54, -27.35, 10.62)
CIE-LCH	lch(32.54, 29.33, 158.78°)
OKLab	oklab(40.89% -0.0746 0.027)
OKLCH	oklch(40.89% 0.079 160.1)
XYZ	xyz(4.5739, 7.3258, 5.3098)
Luminance	0.0733 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18573B #571834

analogous

#18571B #18573B #185457

triadic

#18573B #3B1857 #573B18

tetradic

#18573B #1B1857 #571834 #545718

square

#18573B #1B1857 #571834 #545718

split-complementary

#18573B #571854 #571B18

monochromatic

#071810 #0B271A #18573B #25875C #32B77C

Accessibility & contrast

On white

8.52

#18573B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#18573B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18573B

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18573B	#FFFFFF	#000000	##FFFFFF
##18573B	1.00	8.52	2.47	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#565039

Deuteranopia (green-blind)

#4E4A3D

Tritanopia (blue-blind)

#005750

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #18573b;
/* rgb */ color: rgb(24, 87, 59);
/* oklch */ color: oklch(40.9% 0.079 160.1);

Tailwind

colors: {
  custom: {
    50: '#5e8771',
    500: '#18573b',
    950: '#000000',
  },
}

SCSS

$custom: #18573b;
$custom-light: #5e8771;
$custom-dark: #000000;

JSON

{
  "hex": "#18573b",
  "rgb": {
    "r": 24,
    "g": 87,
    "b": 59
  },
  "hsl": {
    "h": 153.333,
    "s": 56.757,
    "l": 21.765
  },
  "oklch": {
    "l": 0.40891,
    "c": 0.07936,
    "h": 160.1
  },
  "luminance": 0.07326
}

Semantic roles & 50–950 ramp

primary

#18573B

secondary

#8E3D61

accent

#488BE0

background

#F5F8F6

surface

#E9EFEC

border

#C5CAC7

text

#050B07

muted

#797C7A

Preview Lab

Preview with #18573B

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

Preview Lab → · Contrast checker → · Palette generator →