#043239#043239

#043239 is a dark, muted teal. Relative luminance 0.026; OKLCH L 29.2% C 0.048 H 210.4°. Best body text is #FFFFFF at 13.81:1 contrast (WCAG AA passes).

Color values

HEX	#043239
RGB	rgb(4, 50, 57)
HSL	hsl(188, 87%, 12%)
HSV	hsv(188, 93%, 22%)
CMYK	cmyk(93%, 12.3%, 0%, 77.6%)
CIE-LAB	lab(18.37, -11.78, -8.69)
CIE-LCH	lch(18.37, 14.64, 216.40°)
OKLab	oklab(29.17% -0.0413 -0.0242)
OKLCH	oklch(29.17% 0.048 210.4)
XYZ	xyz(1.9289, 2.6022, 4.2707)
Luminance	0.0260 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#043239 #390B04

analogous

#043926 #043239 #041839

triadic

#043239 #390432 #323904

tetradic

#043239 #260439 #390B04 #183904

square

#043239 #260439 #390B04 #183904

split-complementary

#043239 #390418 #392604

monochromatic

#02191D #02191D #043239 #086472 #0C96AB

Accessibility & contrast

On white

13.81

#043239 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#043239 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #043239

13.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##043239	#FFFFFF	#000000	##FFFFFF
##043239	1.00	13.81	1.52	13.81
#FFFFFF	13.81	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C3039

Deuteranopia (green-blind)

#252B39

Tritanopia (blue-blind)

#003534

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #043239;
/* rgb */ color: rgb(4, 50, 57);
/* oklch */ color: oklch(29.2% 0.048 210.4);

Tailwind

colors: {
  custom: {
    50: '#4f6a6f',
    500: '#043239',
    950: '#000000',
  },
}

SCSS

$custom: #043239;
$custom-light: #4f6a6f;
$custom-dark: #000000;

JSON

{
  "hex": "#043239",
  "rgb": {
    "r": 4,
    "g": 50,
    "b": 57
  },
  "hsl": {
    "h": 187.925,
    "s": 86.885,
    "l": 11.961
  },
  "oklch": {
    "l": 0.29172,
    "c": 0.04785,
    "h": 210.4
  },
  "luminance": 0.02602
}

Semantic roles & 50–950 ramp

primary

#043239

secondary

#7B2A1E

accent

#472BFD

background

#F4F6F6

surface

#E7EBEC

border

#C3C6C7

text

#020607

muted

#787A7A

Preview Lab

Preview with #043239

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

Preview Lab → · Contrast checker → · Palette generator →