#143F40#143F40

#143F40 is a dark, muted teal. Relative luminance 0.041; OKLCH L 33.9% C 0.047 H 197.3°. Best body text is #FFFFFF at 11.57:1 contrast (WCAG AA passes).

Color values

HEX	#143F40
RGB	rgb(20, 63, 64)
HSL	hsl(181, 52%, 16%)
HSV	hsv(181, 69%, 25%)
CMYK	cmyk(68.8%, 1.6%, 0%, 74.9%)
CIE-LAB	lab(23.91, -14.18, -5.02)
CIE-LCH	lch(23.91, 15.04, 199.48°)
OKLab	oklab(33.87% -0.0446 -0.0139)
OKLCH	oklch(33.87% 0.047 197.3)
XYZ	xyz(2.9910, 4.0736, 5.4781)
Luminance	0.0407 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143F40 #401514

analogous

#14402B #143F40 #142940

triadic

#143F40 #40143F #3F4014

tetradic

#143F40 #2B1440 #401514 #294014

square

#143F40 #2B1440 #401514 #294014

split-complementary

#143F40 #401429 #402B14

monochromatic

#071717 #071717 #143F40 #236D6F #319B9D

Accessibility & contrast

On white

11.57

#143F40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#143F40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143F40

11.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143F40	#FFFFFF	#000000	##FFFFFF
##143F40	1.00	11.57	1.81	11.57
#FFFFFF	11.57	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A3C40

Deuteranopia (green-blind)

#333740

Tritanopia (blue-blind)

#00413F

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #143f40;
/* rgb */ color: rgb(20, 63, 64);
/* oklch */ color: oklch(33.9% 0.047 197.3);

Tailwind

colors: {
  custom: {
    50: '#587474',
    500: '#143f40',
    950: '#000000',
  },
}

SCSS

$custom: #143f40;
$custom-light: #587474;
$custom-dark: #000000;

JSON

{
  "hex": "#143f40",
  "rgb": {
    "r": 20,
    "g": 63,
    "b": 64
  },
  "hsl": {
    "h": 181.364,
    "s": 52.381,
    "l": 16.471
  },
  "oklch": {
    "l": 0.33874,
    "c": 0.04668,
    "h": 197.3
  },
  "luminance": 0.04074
}

Semantic roles & 50–950 ramp

primary

#143F40

secondary

#783938

accent

#4F4CDC

background

#F5F7F7

surface

#E9EDED

border

#C5C8C8

text

#040808

muted

#797B7B

Preview Lab

Preview with #143F40

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

Preview Lab → · Contrast checker → · Palette generator →