#043A40#043A40

#043A40 is a dark, muted teal. Relative luminance 0.034; OKLCH L 31.9% C 0.053 H 206.6°. Best body text is #FFFFFF at 12.47:1 contrast (WCAG AA passes).

Color values

HEX	#043A40
RGB	rgb(4, 58, 64)
HSL	hsl(186, 88%, 13%)
HSV	hsv(186, 94%, 25%)
CMYK	cmyk(93.8%, 9.4%, 0%, 74.9%)
CIE-LAB	lab(21.66, -13.86, -8.45)
CIE-LCH	lch(21.66, 16.24, 211.37°)
OKLab	oklab(31.93% -0.0469 -0.0236)
OKLCH	oklch(31.93% 0.053 206.6)
XYZ	xyz(2.4881, 3.4218, 5.3788)
Luminance	0.0342 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#043A40 #400A04

analogous

#044028 #043A40 #041C40

triadic

#043A40 #40043A #3A4004

tetradic

#043A40 #280440 #400A04 #1C4004

square

#043A40 #280440 #400A04 #1C4004

split-complementary

#043A40 #40041C #402804

monochromatic

#021A1D #021A1D #043A40 #086E7A #0BA2B3

Accessibility & contrast

On white

12.47

#043A40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#043A40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #043A40

12.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##043A40	#FFFFFF	#000000	##FFFFFF
##043A40	1.00	12.47	1.68	12.47
#FFFFFF	12.47	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#343740

Deuteranopia (green-blind)

#2C3140

Tritanopia (blue-blind)

#003D3C

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #043a40;
/* rgb */ color: rgb(4, 58, 64);
/* oklch */ color: oklch(31.9% 0.053 206.6);

Tailwind

colors: {
  custom: {
    50: '#527074',
    500: '#043a40',
    950: '#000000',
  },
}

SCSS

$custom: #043a40;
$custom-light: #527074;
$custom-dark: #000000;

JSON

{
  "hex": "#043a40",
  "rgb": {
    "r": 4,
    "g": 58,
    "b": 64
  },
  "hsl": {
    "h": 186,
    "s": 88.235,
    "l": 13.333
  },
  "oklch": {
    "l": 0.31929,
    "c": 0.05251,
    "h": 206.6
  },
  "luminance": 0.03422
}

Semantic roles & 50–950 ramp

primary

#043A40

secondary

#81281F

accent

#3F29FE

background

#F4F6F7

surface

#E8ECED

border

#C4C7C8

text

#030708

muted

#787A7B

Preview Lab

Preview with #043A40

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

Preview Lab → · Contrast checker → · Palette generator →