#143E5A#143E5A

#143E5A is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 34.9% C 0.067 H 241.7°. Best body text is #FFFFFF at 11.25:1 contrast (WCAG AA passes).

Color values

HEX	#143E5A
RGB	rgb(20, 62, 90)
HSL	hsl(204, 64%, 22%)
HSV	hsv(204, 78%, 35%)
CMYK	cmyk(77.8%, 31.1%, 0%, 64.7%)
CIE-LAB	lab(24.74, -3.80, -20.90)
CIE-LCH	lch(24.74, 21.24, 259.71°)
OKLab	oklab(34.92% -0.0318 -0.0591)
OKLCH	oklch(34.92% 0.067 241.7)
XYZ	xyz(3.8559, 4.3317, 10.3038)
Luminance	0.0433 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143E5A #5A3014

analogous

#145A53 #143E5A #141B5A

triadic

#143E5A #5A143E #3E5A14

tetradic

#143E5A #53145A #5A3014 #1B5A14

square

#143E5A #53145A #5A3014 #1B5A14

split-complementary

#143E5A #5A141B #5A5314

monochromatic

#061119 #091C28 #143E5A #1F608C #2A83BE

Accessibility & contrast

On white

11.25

#143E5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#143E5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143E5A

11.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143E5A	#FFFFFF	#000000	##FFFFFF
##143E5A	1.00	11.25	1.87	11.25
#FFFFFF	11.25	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#313E5B

Deuteranopia (green-blind)

#273859

Tritanopia (blue-blind)

#004548

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #143e5a;
/* rgb */ color: rgb(20, 62, 90);
/* oklch */ color: oklch(34.9% 0.067 241.7);

Tailwind

colors: {
  custom: {
    50: '#5c7389',
    500: '#143e5a',
    950: '#000000',
  },
}

SCSS

$custom: #143e5a;
$custom-light: #5c7389;
$custom-dark: #000000;

JSON

{
  "hex": "#143e5a",
  "rgb": {
    "r": 20,
    "g": 62,
    "b": 90
  },
  "hsl": {
    "h": 204,
    "s": 63.636,
    "l": 21.569
  },
  "oklch": {
    "l": 0.34923,
    "c": 0.06707,
    "h": 241.7
  },
  "luminance": 0.04332
}

Semantic roles & 50–950 ramp

primary

#143E5A

secondary

#925C38

accent

#8341E7

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05080B

muted

#797B7C

Preview Lab

Preview with #143E5A

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

Preview Lab → · Contrast checker → · Palette generator →