#143C53#143C53

#143C53 is a dark, muted cyan. Relative luminance 0.040; OKLCH L 34.0% C 0.060 H 237.6°. Best body text is #FFFFFF at 11.66:1 contrast (WCAG AA passes).

Color values

HEX	#143C53
RGB	rgb(20, 60, 83)
HSL	hsl(202, 61%, 20%)
HSV	hsv(202, 76%, 33%)
CMYK	cmyk(75.9%, 27.7%, 0%, 67.5%)
CIE-LAB	lab(23.69, -5.27, -17.95)
CIE-LCH	lch(23.69, 18.71, 253.64°)
OKLab	oklab(33.97% -0.0321 -0.0505)
OKLCH	oklch(33.97% 0.06 237.6)
XYZ	xyz(3.4651, 4.0046, 8.7723)
Luminance	0.0401 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143C53 #532B14

analogous

#14534A #143C53 #141C53

triadic

#143C53 #53143C #3C5314

tetradic

#143C53 #4A1453 #532B14 #1C5314

square

#143C53 #4A1453 #532B14 #1C5314

split-complementary

#143C53 #53141C #534A14

monochromatic

#061219 #081822 #143C53 #206084 #2C83B6

Accessibility & contrast

On white

11.66

#143C53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#143C53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143C53

11.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143C53	#FFFFFF	#000000	##FFFFFF
##143C53	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)

#313C54

Deuteranopia (green-blind)

#293653

Tritanopia (blue-blind)

#004244

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #143c53;
/* rgb */ color: rgb(20, 60, 83);
/* oklch */ color: oklch(34.0% 0.060 237.6);

Tailwind

colors: {
  custom: {
    50: '#5b7183',
    500: '#143c53',
    950: '#000000',
  },
}

SCSS

$custom: #143c53;
$custom-light: #5b7183;
$custom-dark: #000000;

JSON

{
  "hex": "#143c53",
  "rgb": {
    "r": 20,
    "g": 60,
    "b": 83
  },
  "hsl": {
    "h": 201.905,
    "s": 61.165,
    "l": 20.196
  },
  "oklch": {
    "l": 0.33968,
    "c": 0.05989,
    "h": 237.6
  },
  "luminance": 0.04005
}

Semantic roles & 50–950 ramp

primary

#143C53

secondary

#8B5638

accent

#7E44E4

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070A

muted

#797A7C

Preview Lab

Preview with #143C53

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

Preview Lab → · Contrast checker → · Palette generator →