#143D5C#143D5C

#143D5C is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 34.8% C 0.071 H 244.9°. Best body text is #FFFFFF at 11.34:1 contrast (WCAG AA passes).

Color values

HEX	#143D5C
RGB	rgb(20, 61, 92)
HSL	hsl(206, 64%, 22%)
HSV	hsv(206, 78%, 36%)
CMYK	cmyk(78.3%, 33.7%, 0%, 63.9%)
CIE-LAB	lab(24.51, -2.32, -22.57)
CIE-LCH	lch(24.51, 22.69, 264.13°)
OKLab	oklab(34.78% -0.0299 -0.0639)
OKLCH	oklch(34.78% 0.071 244.9)
XYZ	xyz(3.8883, 4.2585, 10.7402)
Luminance	0.0426 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143D5C #5C3314

analogous

#145C57 #143D5C #14195C

triadic

#143D5C #5C143D #3D5C14

tetradic

#143D5C #57145C #5C3314 #195C14

square

#143D5C #57145C #5C3314 #195C14

split-complementary

#143D5C #5C1419 #5C5714

monochromatic

#051119 #091C2A #143D5C #1F5E8E #2A80C1

Accessibility & contrast

On white

11.34

#143D5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#143D5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143D5C

11.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143D5C	#FFFFFF	#000000	##FFFFFF
##143D5C	1.00	11.34	1.85	11.34
#FFFFFF	11.34	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F3E5D

Deuteranopia (green-blind)

#25375B

Tritanopia (blue-blind)

#004548

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #143d5c;
/* rgb */ color: rgb(20, 61, 92);
/* oklch */ color: oklch(34.8% 0.071 244.9);

Tailwind

colors: {
  custom: {
    50: '#5d728a',
    500: '#143d5c',
    950: '#000000',
  },
}

SCSS

$custom: #143d5c;
$custom-light: #5d728a;
$custom-dark: #000000;

JSON

{
  "hex": "#143d5c",
  "rgb": {
    "r": 20,
    "g": 61,
    "b": 92
  },
  "hsl": {
    "h": 205.833,
    "s": 64.286,
    "l": 21.961
  },
  "oklch": {
    "l": 0.34776,
    "c": 0.07059,
    "h": 244.9
  },
  "luminance": 0.04259
}

Semantic roles & 50–950 ramp

primary

#143D5C

secondary

#946038

accent

#8841E7

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05070B

muted

#797A7C

Preview Lab

Preview with #143D5C

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

Preview Lab → · Contrast checker → · Palette generator →