#043439#043439

#043439 is a dark, muted teal. Relative luminance 0.028; OKLCH L 29.8% C 0.048 H 205.7°. Best body text is #FFFFFF at 13.50:1 contrast (WCAG AA passes).

Color values

HEX	#043439
RGB	rgb(4, 52, 57)
HSL	hsl(186, 87%, 12%)
HSV	hsv(186, 93%, 22%)
CMYK	cmyk(93%, 8.8%, 0%, 77.6%)
CIE-LAB	lab(19.13, -13.00, -7.54)
CIE-LCH	lch(19.13, 15.03, 210.12°)
OKLab	oklab(29.78% -0.0436 -0.021)
OKLCH	oklch(29.78% 0.048 205.7)
XYZ	xyz(2.0162, 2.7769, 4.2998)
Luminance	0.0278 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#043439 #390904

analogous

#043924 #043439 #041A39

triadic

#043439 #390434 #343904

tetradic

#043439 #240439 #390904 #1A3904

square

#043439 #240439 #390904 #1A3904

split-complementary

#043439 #39041A #392404

monochromatic

#021A1D #021A1D #043439 #086872 #0C9CAB

Accessibility & contrast

On white

13.50

#043439 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#043439 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #043439

13.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##043439	#FFFFFF	#000000	##FFFFFF
##043439	1.00	13.50	1.56	13.50
#FFFFFF	13.50	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F3139

Deuteranopia (green-blind)

#272C39

Tritanopia (blue-blind)

#003735

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #043439;
/* rgb */ color: rgb(4, 52, 57);
/* oklch */ color: oklch(29.8% 0.048 205.7);

Tailwind

colors: {
  custom: {
    50: '#506b6f',
    500: '#043439',
    950: '#000000',
  },
}

SCSS

$custom: #043439;
$custom-light: #506b6f;
$custom-dark: #000000;

JSON

{
  "hex": "#043439",
  "rgb": {
    "r": 4,
    "g": 52,
    "b": 57
  },
  "hsl": {
    "h": 185.66,
    "s": 86.885,
    "l": 11.961
  },
  "oklch": {
    "l": 0.29781,
    "c": 0.0484,
    "h": 205.7
  },
  "luminance": 0.02777
}

Semantic roles & 50–950 ramp

primary

#043439

secondary

#7B271E

accent

#3F2BFD

background

#F4F6F6

surface

#E7EBEC

border

#C3C6C7

text

#020607

muted

#787A7A

Preview Lab

Preview with #043439

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

Preview Lab → · Contrast checker → · Palette generator →