#043940#043940

#043940 is a dark, muted teal. Relative luminance 0.033; OKLCH L 31.6% C 0.052 H 208.8°. Best body text is #FFFFFF at 12.62:1 contrast (WCAG AA passes).

Color values

HEX	#043940
RGB	rgb(4, 57, 64)
HSL	hsl(187, 88%, 13%)
HSV	hsv(187, 94%, 25%)
CMYK	cmyk(93.8%, 10.9%, 0%, 74.9%)
CIE-LAB	lab(21.29, -13.27, -9.02)
CIE-LCH	lch(21.29, 16.04, 214.20°)
OKLab	oklab(31.63% -0.0458 -0.0251)
OKLCH	oklch(31.63% 0.052 208.8)
XYZ	xyz(2.4382, 3.3219, 5.3622)
Luminance	0.0332 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#043940 #400B04

analogous

#044029 #043940 #041B40

triadic

#043940 #400439 #394004

tetradic

#043940 #290440 #400B04 #1B4004

square

#043940 #290440 #400B04 #1B4004

split-complementary

#043940 #40041B #402904

monochromatic

#021A1D #021A1D #043940 #086C7A #0BA0B3

Accessibility & contrast

On white

12.62

#043940 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#043940 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #043940

12.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##043940	#FFFFFF	#000000	##FFFFFF
##043940	1.00	12.62	1.66	12.62
#FFFFFF	12.62	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#333640

Deuteranopia (green-blind)

#2B3140

Tritanopia (blue-blind)

#003C3B

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #043940;
/* rgb */ color: rgb(4, 57, 64);
/* oklch */ color: oklch(31.6% 0.052 208.8);

Tailwind

colors: {
  custom: {
    50: '#526f74',
    500: '#043940',
    950: '#000000',
  },
}

SCSS

$custom: #043940;
$custom-light: #526f74;
$custom-dark: #000000;

JSON

{
  "hex": "#043940",
  "rgb": {
    "r": 4,
    "g": 57,
    "b": 64
  },
  "hsl": {
    "h": 187,
    "s": 88.235,
    "l": 13.333
  },
  "oklch": {
    "l": 0.31629,
    "c": 0.05224,
    "h": 208.8
  },
  "luminance": 0.03322
}

Semantic roles & 50–950 ramp

primary

#043940

secondary

#812A1F

accent

#4229FE

background

#F4F6F7

surface

#E7ECED

border

#C3C7C8

text

#030708

muted

#787A7B

Preview Lab

Preview with #043940

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

Preview Lab → · Contrast checker → · Palette generator →