#18573F#18573F

#18573F is a dark, moderate teal. Relative luminance 0.074; OKLCH L 41.0% C 0.075 H 163.8°. Best body text is #FFFFFF at 8.49:1 contrast (WCAG AA passes).

Color values

HEX	#18573F
RGB	rgb(24, 87, 63)
HSL	hsl(157, 57%, 22%)
HSV	hsv(157, 72%, 34%)
CMYK	cmyk(72.4%, 0%, 27.6%, 65.9%)
CIE-LAB	lab(32.63, -26.34, 8.26)
CIE-LCH	lch(32.63, 27.61, 162.58°)
OKLab	oklab(41% -0.0725 0.0211)
OKLCH	oklch(41% 0.075 163.8)
XYZ	xyz(4.6816, 7.3689, 5.8773)
Luminance	0.0737 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18573F #571830

analogous

#185720 #18573F #185057

triadic

#18573F #3F1857 #573F18

tetradic

#18573F #201857 #571830 #505718

square

#18573F #201857 #571830 #505718

split-complementary

#18573F #571850 #572018

monochromatic

#071811 #0B271C #18573F #258762 #32B784

Accessibility & contrast

On white

8.49

#18573F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#18573F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18573F

8.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18573F	#FFFFFF	#000000	##FFFFFF
##18573F	1.00	8.49	2.47	8.49
#FFFFFF	8.49	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#55503E

Deuteranopia (green-blind)

#4D4A41

Tritanopia (blue-blind)

#005750

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #18573f;
/* rgb */ color: rgb(24, 87, 63);
/* oklch */ color: oklch(41.0% 0.075 163.8);

Tailwind

colors: {
  custom: {
    50: '#5e8774',
    500: '#18573f',
    950: '#000000',
  },
}

SCSS

$custom: #18573f;
$custom-light: #5e8774;
$custom-dark: #000000;

JSON

{
  "hex": "#18573f",
  "rgb": {
    "r": 24,
    "g": 87,
    "b": 63
  },
  "hsl": {
    "h": 157.143,
    "s": 56.757,
    "l": 21.765
  },
  "oklch": {
    "l": 0.41,
    "c": 0.07548,
    "h": 163.8
  },
  "luminance": 0.07369
}

Semantic roles & 50–950 ramp

primary

#18573F

secondary

#8E3D5C

accent

#4882E0

background

#F5F8F7

surface

#E9EFED

border

#C5CAC8

text

#050B08

muted

#797C7B

Preview Lab

Preview with #18573F

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

Preview Lab → · Contrast checker → · Palette generator →