#04373F#04373F

#04373F is a dark, muted teal. Relative luminance 0.031; OKLCH L 31.0% C 0.051 H 211.2°. Best body text is #FFFFFF at 12.94:1 contrast (WCAG AA passes).

Color values

HEX	#04373F
RGB	rgb(4, 55, 63)
HSL	hsl(188, 88%, 13%)
HSV	hsv(188, 94%, 25%)
CMYK	cmyk(93.7%, 12.7%, 0%, 75.3%)
CIE-LAB	lab(20.51, -12.46, -9.53)
CIE-LCH	lch(20.51, 15.69, 217.43°)
OKLab	oklab(30.98% -0.044 -0.0266)
OKLCH	oklch(30.98% 0.051 211.2)
XYZ	xyz(2.3131, 3.1168, 5.1813)
Luminance	0.0312 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04373F #3F0C04

analogous

#043F29 #04373F #04193F

triadic

#04373F #3F0437 #373F04

tetradic

#04373F #29043F #3F0C04 #193F04

square

#04373F #29043F #3F0C04 #193F04

split-complementary

#04373F #3F0419 #3F2904

monochromatic

#02191D #02191D #04373F #086979 #0B9BB2

Accessibility & contrast

On white

12.94

#04373F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#04373F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04373F

12.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04373F	#FFFFFF	#000000	##FFFFFF
##04373F	1.00	12.94	1.62	12.94
#FFFFFF	12.94	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#31353F

Deuteranopia (green-blind)

#292F3F

Tritanopia (blue-blind)

#003A39

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #04373f;
/* rgb */ color: rgb(4, 55, 63);
/* oklch */ color: oklch(31.0% 0.051 211.2);

Tailwind

colors: {
  custom: {
    50: '#516e74',
    500: '#04373f',
    950: '#000000',
  },
}

SCSS

$custom: #04373f;
$custom-light: #516e74;
$custom-dark: #000000;

JSON

{
  "hex": "#04373f",
  "rgb": {
    "r": 4,
    "g": 55,
    "b": 63
  },
  "hsl": {
    "h": 188.136,
    "s": 88.06,
    "l": 13.137
  },
  "oklch": {
    "l": 0.30981,
    "c": 0.05143,
    "h": 211.2
  },
  "luminance": 0.03117
}

Semantic roles & 50–950 ramp

primary

#04373F

secondary

#802C1E

accent

#462AFE

background

#F4F6F7

surface

#E7EBED

border

#C3C6C8

text

#030708

muted

#787A7B

Preview Lab

Preview with #04373F

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

Preview Lab → · Contrast checker → · Palette generator →