#143D4E#143D4E

#143D4E is a dark, muted cyan. Relative luminance 0.040; OKLCH L 34.0% C 0.054 H 228.9°. Best body text is #FFFFFF at 11.62:1 contrast (WCAG AA passes).

Color values

HEX	#143D4E
RGB	rgb(20, 61, 78)
HSL	hsl(198, 59%, 19%)
HSV	hsv(198, 74%, 31%)
CMYK	cmyk(74.4%, 21.8%, 0%, 69.4%)
CIE-LAB	lab(23.79, -7.87, -14.49)
CIE-LCH	lch(23.79, 16.49, 241.50°)
OKLab	oklab(33.97% -0.0354 -0.0406)
OKLCH	oklch(33.97% 0.054 228.9)
XYZ	xyz(3.3318, 4.0359, 7.8097)
Luminance	0.0404 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143D4E #4E2514

analogous

#144E42 #143D4E #14204E

triadic

#143D4E #4E143D #3D4E14

tetradic

#143D4E #42144E #4E2514 #204E14

square

#143D4E #42144E #4E2514 #204E14

split-complementary

#143D4E #4E1420 #4E4214

monochromatic

#061318 #08171D #143D4E #20637F #2D89AF

Accessibility & contrast

On white

11.62

#143D4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#143D4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143D4E

11.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143D4E	#FFFFFF	#000000	##FFFFFF
##143D4E	1.00	11.62	1.81	11.62
#FFFFFF	11.62	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#343C4F

Deuteranopia (green-blind)

#2C364E

Tritanopia (blue-blind)

#004243

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #143d4e;
/* rgb */ color: rgb(20, 61, 78);
/* oklch */ color: oklch(34.0% 0.054 228.9);

Tailwind

colors: {
  custom: {
    50: '#5a727f',
    500: '#143d4e',
    950: '#000000',
  },
}

SCSS

$custom: #143d4e;
$custom-light: #5a727f;
$custom-dark: #000000;

JSON

{
  "hex": "#143d4e",
  "rgb": {
    "r": 20,
    "g": 61,
    "b": 78
  },
  "hsl": {
    "h": 197.586,
    "s": 59.184,
    "l": 19.216
  },
  "oklch": {
    "l": 0.3397,
    "c": 0.05384,
    "h": 228.9
  },
  "luminance": 0.04036
}

Semantic roles & 50–950 ramp

primary

#143D4E

secondary

#864F38

accent

#7345E2

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #143D4E

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

Preview Lab → · Contrast checker → · Palette generator →