#043F40#043F40

#043F40 is a dark, muted teal. Relative luminance 0.040; OKLCH L 33.4% C 0.055 H 196.7°. Best body text is #FFFFFF at 11.73:1 contrast (WCAG AA passes).

Color values

HEX	#043F40
RGB	rgb(4, 63, 64)
HSL	hsl(181, 88%, 13%)
HSV	hsv(181, 94%, 25%)
CMYK	cmyk(93.8%, 1.6%, 0%, 74.9%)
CIE-LAB	lab(23.51, -16.74, -5.67)
CIE-LCH	lch(23.51, 17.68, 198.70°)
OKLab	oklab(33.43% -0.0526 -0.0158)
OKLCH	oklch(33.43% 0.055 196.7)
XYZ	xyz(2.7526, 3.9506, 5.4670)
Luminance	0.0395 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#043F40 #400504

analogous

#044023 #043F40 #042140

triadic

#043F40 #40043F #3F4004

tetradic

#043F40 #230440 #400504 #214004

square

#043F40 #230440 #400504 #214004

split-complementary

#043F40 #400421 #402304

monochromatic

#021C1D #021C1D #043F40 #08787A #0BB0B3

Accessibility & contrast

On white

11.73

#043F40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#043F40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #043F40

11.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##043F40	#FFFFFF	#000000	##FFFFFF
##043F40	1.00	11.73	1.79	11.73
#FFFFFF	11.73	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A3B40

Deuteranopia (green-blind)

#323540

Tritanopia (blue-blind)

#00423F

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #043f40;
/* rgb */ color: rgb(4, 63, 64);
/* oklch */ color: oklch(33.4% 0.055 196.7);

Tailwind

colors: {
  custom: {
    50: '#537474',
    500: '#043f40',
    950: '#000000',
  },
}

SCSS

$custom: #043f40;
$custom-light: #537474;
$custom-dark: #000000;

JSON

{
  "hex": "#043f40",
  "rgb": {
    "r": 4,
    "g": 63,
    "b": 64
  },
  "hsl": {
    "h": 181,
    "s": 88.235,
    "l": 13.333
  },
  "oklch": {
    "l": 0.33428,
    "c": 0.05494,
    "h": 196.7
  },
  "luminance": 0.03951
}

Semantic roles & 50–950 ramp

primary

#043F40

secondary

#81201F

accent

#2D29FE

background

#F5F7F7

surface

#E9EDED

border

#C5C8C8

text

#030808

muted

#787B7B

Preview Lab

Preview with #043F40

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

Preview Lab → · Contrast checker → · Palette generator →