#043539#043539

#043539 is a dark, muted teal. Relative luminance 0.029; OKLCH L 30.1% C 0.049 H 203.4°. Best body text is #FFFFFF at 13.35:1 contrast (WCAG AA passes).

Color values

HEX	#043539
RGB	rgb(4, 53, 57)
HSL	hsl(185, 87%, 12%)
HSV	hsv(185, 93%, 22%)
CMYK	cmyk(93%, 7%, 0%, 77.6%)
CIE-LAB	lab(19.50, -13.60, -6.97)
CIE-LCH	lch(19.50, 15.28, 207.15°)
OKLab	oklab(30.09% -0.0448 -0.0194)
OKLCH	oklch(30.09% 0.049 203.4)
XYZ	xyz(2.0614, 2.8672, 4.3149)
Luminance	0.0287 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#043539 #390804

analogous

#043923 #043539 #041B39

triadic

#043539 #390435 #353904

tetradic

#043539 #230439 #390804 #1B3904

square

#043539 #230439 #390804 #1B3904

split-complementary

#043539 #39041B #392304

monochromatic

#021B1D #021B1D #043539 #086A72 #0C9FAB

Accessibility & contrast

On white

13.35

#043539 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#043539 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #043539

13.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##043539	#FFFFFF	#000000	##FFFFFF
##043539	1.00	13.35	1.57	13.35
#FFFFFF	13.35	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#303239

Deuteranopia (green-blind)

#292D39

Tritanopia (blue-blind)

#003836

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #043539;
/* rgb */ color: rgb(4, 53, 57);
/* oklch */ color: oklch(30.1% 0.049 203.4);

Tailwind

colors: {
  custom: {
    50: '#506c6f',
    500: '#043539',
    950: '#000000',
  },
}

SCSS

$custom: #043539;
$custom-light: #506c6f;
$custom-dark: #000000;

JSON

{
  "hex": "#043539",
  "rgb": {
    "r": 4,
    "g": 53,
    "b": 57
  },
  "hsl": {
    "h": 184.528,
    "s": 86.885,
    "l": 11.961
  },
  "oklch": {
    "l": 0.30086,
    "c": 0.0488,
    "h": 203.4
  },
  "luminance": 0.02867
}

Semantic roles & 50–950 ramp

primary

#043539

secondary

#7B251E

accent

#3B2BFD

background

#F4F6F6

surface

#E7EBEC

border

#C3C6C7

text

#020707

muted

#787A7A

Preview Lab

Preview with #043539

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

Preview Lab → · Contrast checker → · Palette generator →