#143C54#143C54

#143C54 is a dark, moderate cyan. Relative luminance 0.040; OKLCH L 34.0% C 0.061 H 238.7°. Best body text is #FFFFFF at 11.64:1 contrast (WCAG AA passes).

Color values

HEX	#143C54
RGB	rgb(20, 60, 84)
HSL	hsl(203, 62%, 20%)
HSV	hsv(203, 76%, 33%)
CMYK	cmyk(76.2%, 28.6%, 0%, 67.1%)
CIE-LAB	lab(23.74, -4.87, -18.53)
CIE-LCH	lch(23.74, 19.16, 255.27°)
OKLab	oklab(34.03% -0.0317 -0.0522)
OKLCH	oklch(34.03% 0.061 238.7)
XYZ	xyz(3.5040, 4.0201, 8.9771)
Luminance	0.0402 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143C54 #542C14

analogous

#14544C #143C54 #141C54

triadic

#143C54 #54143C #3C5414

tetradic

#143C54 #4C1454 #542C14 #1C5414

square

#143C54 #4C1454 #542C14 #1C5414

split-complementary

#143C54 #54141C #544C14

monochromatic

#061219 #081923 #143C54 #205F85 #2C83B7

Accessibility & contrast

On white

11.64

#143C54 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#143C54 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143C54

11.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143C54	#FFFFFF	#000000	##FFFFFF
##143C54	1.00	11.64	1.80	11.64
#FFFFFF	11.64	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#313C55

Deuteranopia (green-blind)

#283654

Tritanopia (blue-blind)

#004244

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #143c54;
/* rgb */ color: rgb(20, 60, 84);
/* oklch */ color: oklch(34.0% 0.061 238.7);

Tailwind

colors: {
  custom: {
    50: '#5b7184',
    500: '#143c54',
    950: '#000000',
  },
}

SCSS

$custom: #143c54;
$custom-light: #5b7184;
$custom-dark: #000000;

JSON

{
  "hex": "#143c54",
  "rgb": {
    "r": 20,
    "g": 60,
    "b": 84
  },
  "hsl": {
    "h": 202.5,
    "s": 61.538,
    "l": 20.392
  },
  "oklch": {
    "l": 0.34026,
    "c": 0.06111,
    "h": 238.7
  },
  "luminance": 0.04021
}

Semantic roles & 50–950 ramp

primary

#143C54

secondary

#8C5738

accent

#8043E5

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #143C54

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

Preview Lab → · Contrast checker → · Palette generator →