#04193A#04193A

#04193A is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 21.9% C 0.070 H 258.6°. Best body text is #FFFFFF at 17.42:1 contrast (WCAG AA passes).

Color values

HEX	#04193A
RGB	rgb(4, 25, 58)
HSL	hsl(217, 87%, 12%)
HSV	hsv(217, 93%, 23%)
CMYK	cmyk(93.1%, 56.9%, 0%, 77.3%)
CIE-LAB	lab(9.21, 6.49, -23.78)
CIE-LCH	lch(9.21, 24.65, 285.27°)
OKLab	oklab(21.94% -0.0139 -0.0684)
OKLCH	oklch(21.94% 0.07 258.6)
XYZ	xyz(1.1611, 1.0264, 4.1391)
Luminance	0.0103 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04193A #3A2504

analogous

#04343A #04193A #0A043A

triadic

#04193A #3A0419 #193A04

tetradic

#04193A #3A0434 #3A2504 #043A0A

square

#04193A #3A0434 #3A2504 #043A0A

split-complementary

#04193A #3A0A04 #343A04

monochromatic

#020C1D #020C1D #04193A #083273 #0C4AAD

Accessibility & contrast

On white

17.42

#04193A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#04193A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04193A

17.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04193A	#FFFFFF	#000000	##FFFFFF
##04193A	1.00	17.42	1.21	17.42
#FFFFFF	17.42	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#061D3B

Deuteranopia (green-blind)

#001839

Tritanopia (blue-blind)

#002126

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #04193a;
/* rgb */ color: rgb(4, 25, 58);
/* oklch */ color: oklch(21.9% 0.070 258.6);

Tailwind

colors: {
  custom: {
    50: '#4e5570',
    500: '#04193a',
    950: '#000000',
  },
}

SCSS

$custom: #04193a;
$custom-light: #4e5570;
$custom-dark: #000000;

JSON

{
  "hex": "#04193a",
  "rgb": {
    "r": 4,
    "g": 25,
    "b": 58
  },
  "hsl": {
    "h": 216.667,
    "s": 87.097,
    "l": 12.157
  },
  "oklch": {
    "l": 0.21935,
    "c": 0.06984,
    "h": 258.6
  },
  "luminance": 0.01027
}

Semantic roles & 50–950 ramp

primary

#04193A

secondary

#7C571E

accent

#AB2BFD

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020207

muted

#78787A

Preview Lab

Preview with #04193A

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

Preview Lab → · Contrast checker → · Palette generator →