#04373A#04373A

#04373A is a dark, muted teal. Relative luminance 0.031; OKLCH L 30.7% C 0.050 H 201.1°. Best body text is #FFFFFF at 13.02:1 contrast (WCAG AA passes).

Color values

HEX	#04373A
RGB	rgb(4, 55, 58)
HSL	hsl(183, 87%, 12%)
HSV	hsv(183, 93%, 23%)
CMYK	cmyk(93.1%, 5.2%, 0%, 77.3%)
CIE-LAB	lab(20.30, -14.40, -6.46)
CIE-LCH	lch(20.30, 15.78, 204.16°)
OKLab	oklab(30.74% -0.0466 -0.018)
OKLCH	oklch(30.74% 0.05 201.1)
XYZ	xyz(2.1796, 3.0634, 4.4786)
Luminance	0.0306 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04373A #3A0704

analogous

#043A22 #04373A #041C3A

triadic

#04373A #3A0437 #373A04

tetradic

#04373A #22043A #3A0704 #1C3A04

square

#04373A #22043A #3A0704 #1C3A04

split-complementary

#04373A #3A041C #3A2204

monochromatic

#021B1D #021B1D #04373A #086D73 #0CA4AD

Accessibility & contrast

On white

13.02

#04373A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#04373A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04373A

13.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04373A	#FFFFFF	#000000	##FFFFFF
##04373A	1.00	13.02	1.61	13.02
#FFFFFF	13.02	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#32343A

Deuteranopia (green-blind)

#2B2F3A

Tritanopia (blue-blind)

#003A38

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #04373a;
/* rgb */ color: rgb(4, 55, 58);
/* oklch */ color: oklch(30.7% 0.050 201.1);

Tailwind

colors: {
  custom: {
    50: '#506e70',
    500: '#04373a',
    950: '#000000',
  },
}

SCSS

$custom: #04373a;
$custom-light: #506e70;
$custom-dark: #000000;

JSON

{
  "hex": "#04373a",
  "rgb": {
    "r": 4,
    "g": 55,
    "b": 58
  },
  "hsl": {
    "h": 183.333,
    "s": 87.097,
    "l": 12.157
  },
  "oklch": {
    "l": 0.30742,
    "c": 0.04994,
    "h": 201.1
  },
  "luminance": 0.03064
}

Semantic roles & 50–950 ramp

primary

#04373A

secondary

#7C231E

accent

#362BFD

background

#F4F6F6

surface

#E7EBEC

border

#C3C6C7

text

#020707

muted

#787A7A

Preview Lab

Preview with #04373A

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

Preview Lab → · Contrast checker → · Palette generator →