#143B5A#143B5A

#143B5A is a dark, moderate cyan. Relative luminance 0.040; OKLCH L 34.1% C 0.070 H 246.0°. Best body text is #FFFFFF at 11.65:1 contrast (WCAG AA passes).

Color values

HEX	#143B5A
RGB	rgb(20, 59, 90)
HSL	hsl(207, 64%, 22%)
HSV	hsv(207, 78%, 35%)
CMYK	cmyk(77.8%, 34.4%, 0%, 64.7%)
CIE-LAB	lab(23.72, -1.79, -22.50)
CIE-LCH	lch(23.72, 22.57, 265.45°)
OKLab	oklab(34.12% -0.0284 -0.0638)
OKLCH	oklch(34.12% 0.07 246)
XYZ	xyz(3.6972, 4.0144, 10.2509)
Luminance	0.0401 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143B5A #5A3314

analogous

#145A56 #143B5A #14185A

triadic

#143B5A #5A143B #3B5A14

tetradic

#143B5A #56145A #5A3314 #185A14

square

#143B5A #56145A #5A3314 #185A14

split-complementary

#143B5A #5A1418 #5A5614

monochromatic

#061019 #091A28 #143B5A #1F5C8C #2A7DBE

Accessibility & contrast

On white

11.65

#143B5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#143B5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143B5A

11.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143B5A	#FFFFFF	#000000	##FFFFFF
##143B5A	1.00	11.65	1.80	11.65
#FFFFFF	11.65	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D3C5B

Deuteranopia (green-blind)

#233559

Tritanopia (blue-blind)

#004246

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #143b5a;
/* rgb */ color: rgb(20, 59, 90);
/* oklch */ color: oklch(34.1% 0.070 246.0);

Tailwind

colors: {
  custom: {
    50: '#5c7089',
    500: '#143b5a',
    950: '#000000',
  },
}

SCSS

$custom: #143b5a;
$custom-light: #5c7089;
$custom-dark: #000000;

JSON

{
  "hex": "#143b5a",
  "rgb": {
    "r": 20,
    "g": 59,
    "b": 90
  },
  "hsl": {
    "h": 206.571,
    "s": 63.636,
    "l": 21.569
  },
  "oklch": {
    "l": 0.34117,
    "c": 0.06981,
    "h": 246
  },
  "luminance": 0.04015
}

Semantic roles & 50–950 ramp

primary

#143B5A

secondary

#926038

accent

#8A41E7

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#04070B

muted

#797A7C

Preview Lab

Preview with #143B5A

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

Preview Lab → · Contrast checker → · Palette generator →