#143A5B#143A5B

#143A5B is a dark, moderate cyan. Relative luminance 0.039; OKLCH L 33.9% C 0.072 H 248.1°. Best body text is #FFFFFF at 11.76:1 contrast (WCAG AA passes).

Color values

HEX	#143A5B
RGB	rgb(20, 58, 91)
HSL	hsl(208, 64%, 22%)
HSV	hsv(208, 78%, 36%)
CMYK	cmyk(78%, 36.3%, 0%, 64.3%)
CIE-LAB	lab(23.44, -0.70, -23.60)
CIE-LCH	lch(23.44, 23.61, 268.30°)
OKLab	oklab(33.92% -0.027 -0.067)
OKLCH	oklch(33.92% 0.072 248.1)
XYZ	xyz(3.6892, 3.9298, 10.4596)
Luminance	0.0393 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143A5B #5B3514

analogous

#145B59 #143A5B #14175B

triadic

#143A5B #5B143A #3A5B14

tetradic

#143A5B #59145B #5B3514 #175B14

square

#143A5B #59145B #5B3514 #175B14

split-complementary

#143A5B #5B1417 #5B5914

monochromatic

#061019 #091A29 #143A5B #1F5A8D #2A7ABF

Accessibility & contrast

On white

11.76

#143A5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#143A5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143A5B

11.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143A5B	#FFFFFF	#000000	##FFFFFF
##143A5B	1.00	11.76	1.79	11.76
#FFFFFF	11.76	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B3B5C

Deuteranopia (green-blind)

#21355A

Tritanopia (blue-blind)

#004246

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #143a5b;
/* rgb */ color: rgb(20, 58, 91);
/* oklch */ color: oklch(33.9% 0.072 248.1);

Tailwind

colors: {
  custom: {
    50: '#5c6f89',
    500: '#143a5b',
    950: '#000000',
  },
}

SCSS

$custom: #143a5b;
$custom-light: #5c6f89;
$custom-dark: #000000;

JSON

{
  "hex": "#143a5b",
  "rgb": {
    "r": 20,
    "g": 58,
    "b": 91
  },
  "hsl": {
    "h": 207.887,
    "s": 63.964,
    "l": 21.765
  },
  "oklch": {
    "l": 0.33915,
    "c": 0.07222,
    "h": 248.1
  },
  "luminance": 0.0393
}

Semantic roles & 50–950 ramp

primary

#143A5B

secondary

#936238

accent

#8E41E7

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05070B

muted

#797A7C

Preview Lab

Preview with #143A5B

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

Preview Lab → · Contrast checker → · Palette generator →