#04192B#04192B

#04192B is a very dark, muted cyan. Relative luminance 0.009; OKLCH L 20.7% C 0.045 H 246.7°. Best body text is #FFFFFF at 17.81:1 contrast (WCAG AA passes).

Color values

HEX	#04192B
RGB	rgb(4, 25, 43)
HSL	hsl(208, 83%, 9%)
HSV	hsv(208, 91%, 17%)
CMYK	cmyk(90.7%, 41.9%, 0%, 83.1%)
CIE-LAB	lab(8.09, -0.71, -14.65)
CIE-LCH	lch(8.09, 14.67, 267.21°)
OKLab	oklab(20.7% -0.018 -0.0416)
OKLCH	oklch(20.7% 0.045 246.7)
XYZ	xyz(0.8336, 0.8954, 2.4139)
Luminance	0.0089 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04192B #2B1604

analogous

#042B2A #04192B #04062B

triadic

#04192B #2B0419 #192B04

tetradic

#04192B #2A042B #2B1604 #062B04

square

#04192B #2A042B #2B1604 #062B04

split-complementary

#04192B #2B0406 #2B2A04

monochromatic

#03101C #03101C #04192B #093A63 #0E5A9B

Accessibility & contrast

On white

17.81

#04192B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#04192B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04192B

17.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04192B	#FFFFFF	#000000	##FFFFFF
##04192B	1.00	17.81	1.18	17.81
#FFFFFF	17.81	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#111A2C

Deuteranopia (green-blind)

#0B162B

Tritanopia (blue-blind)

#001D1F

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #04192b;
/* rgb */ color: rgb(4, 25, 43);
/* oklch */ color: oklch(20.7% 0.045 246.7);

Tailwind

colors: {
  custom: {
    50: '#4a5564',
    500: '#04192b',
    950: '#000000',
  },
}

SCSS

$custom: #04192b;
$custom-light: #4a5564;
$custom-dark: #000000;

JSON

{
  "hex": "#04192b",
  "rgb": {
    "r": 4,
    "g": 25,
    "b": 43
  },
  "hsl": {
    "h": 207.692,
    "s": 82.979,
    "l": 9.216
  },
  "oklch": {
    "l": 0.20701,
    "c": 0.04535,
    "h": 246.7
  },
  "luminance": 0.00895
}

Semantic roles & 50–950 ramp

primary

#04192B

secondary

#6E421D

accent

#8C2EF9

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010305

muted

#77787A

Preview Lab

Preview with #04192B

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

Preview Lab → · Contrast checker → · Palette generator →