#143A4B#143A4B

#143A4B is a dark, muted cyan. Relative luminance 0.037; OKLCH L 33.0% C 0.052 H 230.6°. Best body text is #FFFFFF at 12.09:1 contrast (WCAG AA passes).

Color values

HEX	#143A4B
RGB	rgb(20, 58, 75)
HSL	hsl(199, 58%, 19%)
HSV	hsv(199, 73%, 29%)
CMYK	cmyk(73.3%, 22.7%, 0%, 70.6%)
CIE-LAB	lab(22.59, -7.10, -14.35)
CIE-LCH	lch(22.59, 16.01, 243.69°)
OKLab	oklab(32.97% -0.033 -0.0402)
OKLCH	oklch(32.97% 0.052 230.6)
XYZ	xyz(3.0710, 3.6825, 7.2042)
Luminance	0.0368 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143A4B #4B2514

analogous

#144B40 #143A4B #141E4B

triadic

#143A4B #4B143A #3A4B14

tetradic

#143A4B #40144B #4B2514 #1E4B14

square

#143A4B #40144B #4B2514 #1E4B14

split-complementary

#143A4B #4B141E #4B4014

monochromatic

#061318 #07151B #143A4B #215F7B #2E85AC

Accessibility & contrast

On white

12.09

#143A4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#143A4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143A4B

12.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143A4B	#FFFFFF	#000000	##FFFFFF
##143A4B	1.00	12.09	1.74	12.09
#FFFFFF	12.09	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#31394C

Deuteranopia (green-blind)

#2A344B

Tritanopia (blue-blind)

#003F40

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #143a4b;
/* rgb */ color: rgb(20, 58, 75);
/* oklch */ color: oklch(33.0% 0.052 230.6);

Tailwind

colors: {
  custom: {
    50: '#59707d',
    500: '#143a4b',
    950: '#000000',
  },
}

SCSS

$custom: #143a4b;
$custom-light: #59707d;
$custom-dark: #000000;

JSON

{
  "hex": "#143a4b",
  "rgb": {
    "r": 20,
    "g": 58,
    "b": 75
  },
  "hsl": {
    "h": 198.545,
    "s": 57.895,
    "l": 18.627
  },
  "oklch": {
    "l": 0.32968,
    "c": 0.05201,
    "h": 230.6
  },
  "luminance": 0.03683
}

Semantic roles & 50–950 ramp

primary

#143A4B

secondary

#834F38

accent

#7647E1

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#040709

muted

#797A7B

Preview Lab

Preview with #143A4B

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

Preview Lab → · Contrast checker → · Palette generator →