#143F57#143F57

#143F57 is a dark, moderate cyan. Relative luminance 0.044; OKLCH L 35.0% C 0.063 H 237.1°. Best body text is #FFFFFF at 11.18:1 contrast (WCAG AA passes).

Color values

HEX	#143F57
RGB	rgb(20, 63, 87)
HSL	hsl(201, 63%, 21%)
HSV	hsv(201, 77%, 34%)
CMYK	cmyk(77%, 27.6%, 0%, 65.9%)
CIE-LAB	lab(24.93, -5.65, -18.65)
CIE-LCH	lch(24.93, 19.49, 253.15°)
OKLab	oklab(35.02% -0.034 -0.0525)
OKLCH	oklch(35.02% 0.063 237.1)
XYZ	xyz(3.7856, 4.3914, 9.6631)
Luminance	0.0439 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143F57 #572C14

analogous

#14574D #143F57 #141D57

triadic

#143F57 #57143F #3F5714

tetradic

#143F57 #4D1457 #572C14 #1D5714

square

#143F57 #4D1457 #572C14 #1D5714

split-complementary

#143F57 #57141D #574D14

monochromatic

#061219 #091B25 #143F57 #1F6389 #2B87BB

Accessibility & contrast

On white

11.18

#143F57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#143F57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143F57

11.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143F57	#FFFFFF	#000000	##FFFFFF
##143F57	1.00	11.18	1.88	11.18
#FFFFFF	11.18	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#343F58

Deuteranopia (green-blind)

#2A3857

Tritanopia (blue-blind)

#004547

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #143f57;
/* rgb */ color: rgb(20, 63, 87);
/* oklch */ color: oklch(35.0% 0.063 237.1);

Tailwind

colors: {
  custom: {
    50: '#5c7486',
    500: '#143f57',
    950: '#000000',
  },
}

SCSS

$custom: #143f57;
$custom-light: #5c7486;
$custom-dark: #000000;

JSON

{
  "hex": "#143f57",
  "rgb": {
    "r": 20,
    "g": 63,
    "b": 87
  },
  "hsl": {
    "h": 201.493,
    "s": 62.617,
    "l": 20.98
  },
  "oklch": {
    "l": 0.35019,
    "c": 0.06259,
    "h": 237.1
  },
  "luminance": 0.04392
}

Semantic roles & 50–950 ramp

primary

#143F57

secondary

#8F5738

accent

#7D42E6

background

#F5F7F8

surface

#E9EDEF

border

#C5C8CA

text

#04080B

muted

#797B7C

Preview Lab

Preview with #143F57

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

Preview Lab → · Contrast checker → · Palette generator →