#143D4D#143D4D

#143D4D is a dark, muted cyan. Relative luminance 0.040; OKLCH L 33.9% C 0.053 H 227.4°. Best body text is #FFFFFF at 11.64:1 contrast (WCAG AA passes).

Color values

HEX	#143D4D
RGB	rgb(20, 61, 77)
HSL	hsl(197, 59%, 19%)
HSV	hsv(197, 74%, 30%)
CMYK	cmyk(74%, 20.8%, 0%, 69.8%)
CIE-LAB	lab(23.74, -8.25, -13.90)
CIE-LCH	lch(23.74, 16.17, 239.31°)
OKLab	oklab(33.92% -0.0358 -0.0389)
OKLCH	oklch(33.92% 0.053 227.4)
XYZ	xyz(3.2963, 4.0217, 7.6223)
Luminance	0.0402 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143D4D #4D2414

analogous

#144D41 #143D4D #14214D

triadic

#143D4D #4D143D #3D4D14

tetradic

#143D4D #41144D #4D2414 #214D14

square

#143D4D #41144D #4D2414 #214D14

split-complementary

#143D4D #4D1421 #4D4114

monochromatic

#061318 #07171C #143D4D #21637E #2D8AAE

Accessibility & contrast

On white

11.64

#143D4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#143D4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143D4D

11.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143D4D	#FFFFFF	#000000	##FFFFFF
##143D4D	1.00	11.64	1.80	11.64
#FFFFFF	11.64	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#353C4E

Deuteranopia (green-blind)

#2D364D

Tritanopia (blue-blind)

#004242

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #143d4d;
/* rgb */ color: rgb(20, 61, 77);
/* oklch */ color: oklch(33.9% 0.053 227.4);

Tailwind

colors: {
  custom: {
    50: '#5a727e',
    500: '#143d4d',
    950: '#000000',
  },
}

SCSS

$custom: #143d4d;
$custom-light: #5a727e;
$custom-dark: #000000;

JSON

{
  "hex": "#143d4d",
  "rgb": {
    "r": 20,
    "g": 61,
    "b": 77
  },
  "hsl": {
    "h": 196.842,
    "s": 58.763,
    "l": 19.02
  },
  "oklch": {
    "l": 0.33917,
    "c": 0.05287,
    "h": 227.4
  },
  "luminance": 0.04022
}

Semantic roles & 50–950 ramp

primary

#143D4D

secondary

#854D38

accent

#7246E2

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #143D4D

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

Preview Lab → · Contrast checker → · Palette generator →