#143C5A#143C5A

#143C5A is a dark, moderate cyan. Relative luminance 0.041; OKLCH L 34.4% C 0.069 H 244.6°. Best body text is #FFFFFF at 11.51:1 contrast (WCAG AA passes).

Color values

HEX	#143C5A
RGB	rgb(20, 60, 90)
HSL	hsl(206, 64%, 22%)
HSV	hsv(206, 78%, 35%)
CMYK	cmyk(77.8%, 33.3%, 0%, 64.7%)
CIE-LAB	lab(24.06, -2.46, -21.97)
CIE-LCH	lch(24.06, 22.11, 263.60°)
OKLab	oklab(34.39% -0.0295 -0.0622)
OKLCH	oklch(34.39% 0.069 244.6)
XYZ	xyz(3.7491, 4.1182, 10.2682)
Luminance	0.0412 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143C5A #5A3214

analogous

#145A55 #143C5A #14195A

triadic

#143C5A #5A143C #3C5A14

tetradic

#143C5A #55145A #5A3214 #195A14

square

#143C5A #55145A #5A3214 #195A14

split-complementary

#143C5A #5A1419 #5A5514

monochromatic

#061119 #091B28 #143C5A #1F5D8C #2A7FBE

Accessibility & contrast

On white

11.51

#143C5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#143C5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143C5A

11.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143C5A	#FFFFFF	#000000	##FFFFFF
##143C5A	1.00	11.51	1.82	11.51
#FFFFFF	11.51	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E3D5B

Deuteranopia (green-blind)

#253659

Tritanopia (blue-blind)

#004347

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #143c5a;
/* rgb */ color: rgb(20, 60, 90);
/* oklch */ color: oklch(34.4% 0.069 244.6);

Tailwind

colors: {
  custom: {
    50: '#5c7189',
    500: '#143c5a',
    950: '#000000',
  },
}

SCSS

$custom: #143c5a;
$custom-light: #5c7189;
$custom-dark: #000000;

JSON

{
  "hex": "#143c5a",
  "rgb": {
    "r": 20,
    "g": 60,
    "b": 90
  },
  "hsl": {
    "h": 205.714,
    "s": 63.636,
    "l": 21.569
  },
  "oklch": {
    "l": 0.34385,
    "c": 0.06885,
    "h": 244.6
  },
  "luminance": 0.04119
}

Semantic roles & 50–950 ramp

primary

#143C5A

secondary

#925E38

accent

#8841E7

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#04070B

muted

#797A7C

Preview Lab

Preview with #143C5A

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

Preview Lab → · Contrast checker → · Palette generator →