#143F4A#143F4A

#143F4A is a dark, muted cyan. Relative luminance 0.042; OKLCH L 34.3% C 0.050 H 217.8°. Best body text is #FFFFFF at 11.42:1 contrast (WCAG AA passes).

Color values

HEX	#143F4A
RGB	rgb(20, 63, 74)
HSL	hsl(192, 57%, 18%)
HSV	hsv(192, 73%, 29%)
CMYK	cmyk(73%, 14.9%, 0%, 71%)
CIE-LAB	lab(24.31, -10.63, -11.04)
CIE-LCH	lch(24.31, 15.33, 226.09°)
OKLab	oklab(34.33% -0.0396 -0.0307)
OKLCH	oklch(34.33% 0.05 217.8)
XYZ	xyz(3.3015, 4.1978, 7.1135)
Luminance	0.0420 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143F4A #4A1F14

analogous

#144A3A #143F4A #14244A

triadic

#143F4A #4A143F #3F4A14

tetradic

#143F4A #3A144A #4A1F14 #244A14

square

#143F4A #3A144A #4A1F14 #244A14

split-complementary

#143F4A #4A1424 #4A3A14

monochromatic

#071518 #07161A #143F4A #21687A #2E91AA

Accessibility & contrast

On white

11.42

#143F4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#143F4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143F4A

11.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143F4A	#FFFFFF	#000000	##FFFFFF
##143F4A	1.00	11.42	1.84	11.42
#FFFFFF	11.42	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#383D4B

Deuteranopia (green-blind)

#30374A

Tritanopia (blue-blind)

#004342

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #143f4a;
/* rgb */ color: rgb(20, 63, 74);
/* oklch */ color: oklch(34.3% 0.050 217.8);

Tailwind

colors: {
  custom: {
    50: '#59747c',
    500: '#143f4a',
    950: '#000000',
  },
}

SCSS

$custom: #143f4a;
$custom-light: #59747c;
$custom-dark: #000000;

JSON

{
  "hex": "#143f4a",
  "rgb": {
    "r": 20,
    "g": 63,
    "b": 74
  },
  "hsl": {
    "h": 192.222,
    "s": 57.447,
    "l": 18.431
  },
  "oklch": {
    "l": 0.3433,
    "c": 0.05014,
    "h": 217.8
  },
  "luminance": 0.04198
}

Semantic roles & 50–950 ramp

primary

#143F4A

secondary

#824738

accent

#6647E1

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#040809

muted

#797B7B

Preview Lab

Preview with #143F4A

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

Preview Lab → · Contrast checker → · Palette generator →