#143D3F#143D3F

#143D3F is a dark, muted teal. Relative luminance 0.038; OKLCH L 33.2% C 0.045 H 199.7°. Best body text is #FFFFFF at 11.87:1 contrast (WCAG AA passes).

Color values

HEX	#143D3F
RGB	rgb(20, 61, 63)
HSL	hsl(183, 52%, 16%)
HSV	hsv(183, 68%, 25%)
CMYK	cmyk(68.3%, 3.2%, 0%, 75.3%)
CIE-LAB	lab(23.15, -13.35, -5.49)
CIE-LCH	lch(23.15, 14.43, 202.37°)
OKLab	oklab(33.25% -0.0425 -0.0152)
OKLCH	oklch(33.25% 0.045 199.7)
XYZ	xyz(2.8541, 3.8448, 5.2934)
Luminance	0.0384 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143D3F #3F1614

analogous

#143F2C #143D3F #14283F

triadic

#143D3F #3F143D #3D3F14

tetradic

#143D3F #2C143F #3F1614 #283F14

square

#143D3F #2C143F #3F1614 #283F14

split-complementary

#143D3F #3F1428 #3F2C14

monochromatic

#071617 #071617 #143D3F #236A6D #31979C

Accessibility & contrast

On white

11.87

#143D3F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#143D3F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143D3F

11.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143D3F	#FFFFFF	#000000	##FFFFFF
##143D3F	1.00	11.87	1.77	11.87
#FFFFFF	11.87	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#383A3F

Deuteranopia (green-blind)

#32353F

Tritanopia (blue-blind)

#003F3D

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #143d3f;
/* rgb */ color: rgb(20, 61, 63);
/* oklch */ color: oklch(33.2% 0.045 199.7);

Tailwind

colors: {
  custom: {
    50: '#587274',
    500: '#143d3f',
    950: '#000000',
  },
}

SCSS

$custom: #143d3f;
$custom-light: #587274;
$custom-dark: #000000;

JSON

{
  "hex": "#143d3f",
  "rgb": {
    "r": 20,
    "g": 61,
    "b": 63
  },
  "hsl": {
    "h": 182.791,
    "s": 51.807,
    "l": 16.275
  },
  "oklch": {
    "l": 0.33246,
    "c": 0.04514,
    "h": 199.7
  },
  "luminance": 0.03845
}

Semantic roles & 50–950 ramp

primary

#143D3F

secondary

#773B38

accent

#534DDB

background

#F5F6F7

surface

#E9ECED

border

#C5C7C8

text

#030808

muted

#787B7B

Preview Lab

Preview with #143D3F

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

Preview Lab → · Contrast checker → · Palette generator →