#143F3A#143F3A

#143F3A is a dark, muted teal. Relative luminance 0.040; OKLCH L 33.6% C 0.048 H 184.6°. Best body text is #FFFFFF at 11.66:1 contrast (WCAG AA passes).

Color values

HEX	#143F3A
RGB	rgb(20, 63, 58)
HSL	hsl(173, 52%, 16%)
HSV	hsv(173, 68%, 25%)
CMYK	cmyk(68.3%, 0%, 7.9%, 75.3%)
CIE-LAB	lab(23.70, -16.16, -1.34)
CIE-LCH	lch(23.70, 16.22, 184.75°)
OKLab	oklab(33.63% -0.0477 -0.0039)
OKLCH	oklch(33.63% 0.048 184.6)
XYZ	xyz(2.8294, 4.0089, 4.6269)
Luminance	0.0401 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143F3A #3F1419

analogous

#143F25 #143F3A #142F3F

triadic

#143F3A #3A143F #3F3A14

tetradic

#143F3A #25143F #3F1419 #2F3F14

square

#143F3A #25143F #3F1419 #2F3F14

split-complementary

#143F3A #3F142F #3F2514

monochromatic

#071715 #071715 #143F3A #236D65 #319C90

Accessibility & contrast

On white

11.66

#143F3A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#143F3A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143F3A

11.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143F3A	#FFFFFF	#000000	##FFFFFF
##143F3A	1.00	11.66	1.80	11.66
#FFFFFF	11.66	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C3B3A

Deuteranopia (green-blind)

#35363B

Tritanopia (blue-blind)

#00403D

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #143f3a;
/* rgb */ color: rgb(20, 63, 58);
/* oklch */ color: oklch(33.6% 0.048 184.6);

Tailwind

colors: {
  custom: {
    50: '#587470',
    500: '#143f3a',
    950: '#000000',
  },
}

SCSS

$custom: #143f3a;
$custom-light: #587470;
$custom-dark: #000000;

JSON

{
  "hex": "#143f3a",
  "rgb": {
    "r": 20,
    "g": 63,
    "b": 58
  },
  "hsl": {
    "h": 173.023,
    "s": 51.807,
    "l": 16.275
  },
  "oklch": {
    "l": 0.33631,
    "c": 0.04791,
    "h": 184.6
  },
  "luminance": 0.04009
}

Semantic roles & 50–950 ramp

primary

#143F3A

secondary

#77383F

accent

#4D5DDB

background

#F5F7F6

surface

#E9EDEC

border

#C5C8C7

text

#030807

muted

#787B7A

Preview Lab

Preview with #143F3A

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

Preview Lab → · Contrast checker → · Palette generator →