#143B43#143B43

#143B43 is a dark, muted cyan. Relative luminance 0.037; OKLCH L 32.8% C 0.045 H 213.4°. Best body text is #FFFFFF at 12.09:1 contrast (WCAG AA passes).

Color values

HEX	#143B43
RGB	rgb(20, 59, 67)
HSL	hsl(190, 54%, 17%)
HSV	hsv(190, 70%, 26%)
CMYK	cmyk(70.1%, 11.9%, 0%, 73.7%)
CIE-LAB	lab(22.59, -10.72, -9.01)
CIE-LCH	lch(22.59, 14.01, 220.05°)
OKLab	oklab(32.85% -0.0379 -0.025)
OKLCH	oklch(32.85% 0.045 213.4)
XYZ	xyz(2.8652, 3.6816, 5.8687)
Luminance	0.0368 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143B43 #431C14

analogous

#144334 #143B43 #142443

triadic

#143B43 #43143B #3B4314

tetradic

#143B43 #341443 #431C14 #244314

square

#143B43 #341443 #431C14 #244314

split-complementary

#143B43 #431424 #433414

monochromatic

#071518 #071518 #143B43 #226572 #308EA1

Accessibility & contrast

On white

12.09

#143B43 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#143B43 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143B43

12.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143B43	#FFFFFF	#000000	##FFFFFF
##143B43	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)

#353943

Deuteranopia (green-blind)

#2E3443

Tritanopia (blue-blind)

#003E3D

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #143b43;
/* rgb */ color: rgb(20, 59, 67);
/* oklch */ color: oklch(32.8% 0.045 213.4);

Tailwind

colors: {
  custom: {
    50: '#587177',
    500: '#143b43',
    950: '#000000',
  },
}

SCSS

$custom: #143b43;
$custom-light: #587177;
$custom-dark: #000000;

JSON

{
  "hex": "#143b43",
  "rgb": {
    "r": 20,
    "g": 59,
    "b": 67
  },
  "hsl": {
    "h": 190.213,
    "s": 54.023,
    "l": 17.059
  },
  "oklch": {
    "l": 0.32846,
    "c": 0.04544,
    "h": 213.4
  },
  "luminance": 0.03682
}

Semantic roles & 50–950 ramp

primary

#143B43

secondary

#7B4338

accent

#634ADD

background

#F5F6F7

surface

#E9ECED

border

#C5C7C8

text

#040708

muted

#797A7B

Preview Lab

Preview with #143B43

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

Preview Lab → · Contrast checker → · Palette generator →