#04343F#04343F

#04343F is a dark, muted cyan. Relative luminance 0.028; OKLCH L 30.1% C 0.051 H 217.8°. Best body text is #FFFFFF at 13.39:1 contrast (WCAG AA passes).

Color values

HEX	#04343F
RGB	rgb(4, 52, 63)
HSL	hsl(191, 88%, 13%)
HSV	hsv(191, 94%, 25%)
CMYK	cmyk(93.7%, 17.5%, 0%, 75.3%)
CIE-LAB	lab(19.39, -10.61, -11.24)
CIE-LCH	lch(19.39, 15.45, 226.66°)
OKLab	oklab(30.08% -0.0406 -0.0314)
OKLCH	oklch(30.08% 0.051 217.8)
XYZ	xyz(2.1749, 2.8404, 5.1353)
Luminance	0.0284 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04343F #3F0F04

analogous

#043F2C #04343F #04163F

triadic

#04343F #3F0434 #343F04

tetradic

#04343F #2C043F #3F0F04 #163F04

square

#04343F #2C043F #3F0F04 #163F04

split-complementary

#04343F #3F0416 #3F2C04

monochromatic

#02181D #02181D #04343F #086379 #0B93B2

Accessibility & contrast

On white

13.39

#04343F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#04343F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04343F

13.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04343F	#FFFFFF	#000000	##FFFFFF
##04343F	1.00	13.39	1.57	13.39
#FFFFFF	13.39	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D3240

Deuteranopia (green-blind)

#252D3F

Tritanopia (blue-blind)

#003837

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #04343f;
/* rgb */ color: rgb(4, 52, 63);
/* oklch */ color: oklch(30.1% 0.051 217.8);

Tailwind

colors: {
  custom: {
    50: '#516b74',
    500: '#04343f',
    950: '#000000',
  },
}

SCSS

$custom: #04343f;
$custom-light: #516b74;
$custom-dark: #000000;

JSON

{
  "hex": "#04343f",
  "rgb": {
    "r": 4,
    "g": 52,
    "b": 63
  },
  "hsl": {
    "h": 191.186,
    "s": 88.06,
    "l": 13.137
  },
  "oklch": {
    "l": 0.30083,
    "c": 0.05135,
    "h": 217.8
  },
  "luminance": 0.02841
}

Semantic roles & 50–950 ramp

primary

#04343F

secondary

#80311E

accent

#512AFE

background

#F4F6F7

surface

#E7EBED

border

#C3C6C8

text

#020608

muted

#787A7B

Preview Lab

Preview with #04343F

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

Preview Lab → · Contrast checker → · Palette generator →