#143F3D#143F3D

#143F3D is a dark, muted teal. Relative luminance 0.040; OKLCH L 33.7% C 0.047 H 190.9°. Best body text is #FFFFFF at 11.61:1 contrast (WCAG AA passes).

Color values

HEX	#143F3D
RGB	rgb(20, 63, 61)
HSL	hsl(177, 52%, 16%)
HSV	hsv(177, 68%, 25%)
CMYK	cmyk(68.3%, 0%, 3.2%, 75.3%)
CIE-LAB	lab(23.80, -15.19, -3.18)
CIE-LCH	lch(23.80, 15.52, 191.84°)
OKLab	oklab(33.75% -0.0461 -0.0089)
OKLCH	oklch(33.75% 0.047 190.9)
XYZ	xyz(2.9079, 4.0404, 5.0406)
Luminance	0.0404 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143F3D #3F1416

analogous

#143F28 #143F3D #142C3F

triadic

#143F3D #3D143F #3F3D14

tetradic

#143F3D #28143F #3F1416 #2C3F14

square

#143F3D #28143F #3F1416 #2C3F14

split-complementary

#143F3D #3F142C #3F2814

monochromatic

#071716 #071716 #143F3D #236D6A #319C97

Accessibility & contrast

On white

11.61

#143F3D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#143F3D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143F3D

11.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143F3D	#FFFFFF	#000000	##FFFFFF
##143F3D	1.00	11.61	1.81	11.61
#FFFFFF	11.61	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B3C3D

Deuteranopia (green-blind)

#34373D

Tritanopia (blue-blind)

#00413E

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #143f3d;
/* rgb */ color: rgb(20, 63, 61);
/* oklch */ color: oklch(33.7% 0.047 190.9);

Tailwind

colors: {
  custom: {
    50: '#587472',
    500: '#143f3d',
    950: '#000000',
  },
}

SCSS

$custom: #143f3d;
$custom-light: #587472;
$custom-dark: #000000;

JSON

{
  "hex": "#143f3d",
  "rgb": {
    "r": 20,
    "g": 63,
    "b": 61
  },
  "hsl": {
    "h": 177.209,
    "s": 51.807,
    "l": 16.275
  },
  "oklch": {
    "l": 0.33749,
    "c": 0.04699,
    "h": 190.9
  },
  "luminance": 0.04041
}

Semantic roles & 50–950 ramp

primary

#143F3D

secondary

#77383B

accent

#4D53DB

background

#F5F7F6

surface

#E9EDEC

border

#C5C8C7

text

#030808

muted

#787B7B

Preview Lab

Preview with #143F3D

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

Preview Lab → · Contrast checker → · Palette generator →