#143C57#143C57

#143C57 is a dark, moderate cyan. Relative luminance 0.041; OKLCH L 34.2% C 0.065 H 241.9°. Best body text is #FFFFFF at 11.58:1 contrast (WCAG AA passes).

Color values

HEX	#143C57
RGB	rgb(20, 60, 87)
HSL	hsl(204, 63%, 21%)
HSV	hsv(204, 77%, 34%)
CMYK	cmyk(77%, 31%, 0%, 65.9%)
CIE-LAB	lab(23.90, -3.68, -20.26)
CIE-LCH	lch(23.90, 20.59, 259.72°)
OKLab	oklab(34.2% -0.0306 -0.0572)
OKLCH	oklch(34.2% 0.065 241.9)
XYZ	xyz(3.6240, 4.0682, 9.6092)
Luminance	0.0407 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143C57 #572F14

analogous

#145750 #143C57 #141A57

triadic

#143C57 #57143C #3C5714

tetradic

#143C57 #501457 #572F14 #1A5714

square

#143C57 #501457 #572F14 #1A5714

split-complementary

#143C57 #57141A #575014

monochromatic

#061119 #091A25 #143C57 #1F5E89 #2B81BB

Accessibility & contrast

On white

11.58

#143C57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#143C57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143C57

11.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143C57	#FFFFFF	#000000	##FFFFFF
##143C57	1.00	11.58	1.81	11.58
#FFFFFF	11.58	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#303C58

Deuteranopia (green-blind)

#263657

Tritanopia (blue-blind)

#004345

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #143c57;
/* rgb */ color: rgb(20, 60, 87);
/* oklch */ color: oklch(34.2% 0.065 241.9);

Tailwind

colors: {
  custom: {
    50: '#5c7186',
    500: '#143c57',
    950: '#000000',
  },
}

SCSS

$custom: #143c57;
$custom-light: #5c7186;
$custom-dark: #000000;

JSON

{
  "hex": "#143c57",
  "rgb": {
    "r": 20,
    "g": 60,
    "b": 87
  },
  "hsl": {
    "h": 204.179,
    "s": 62.617,
    "l": 20.98
  },
  "oklch": {
    "l": 0.34203,
    "c": 0.06489,
    "h": 241.9
  },
  "luminance": 0.04069
}

Semantic roles & 50–950 ramp

primary

#143C57

secondary

#8F5B38

accent

#8442E6

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #143C57

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

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