#04193F#04193F

#04193F is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.4% C 0.078 H 260.4°. Best body text is #FFFFFF at 17.27:1 contrast (WCAG AA passes).

Color values

HEX	#04193F
RGB	rgb(4, 25, 63)
HSL	hsl(219, 88%, 13%)
HSV	hsv(219, 94%, 25%)
CMYK	cmyk(93.7%, 60.3%, 0%, 75.3%)
CIE-LAB	lab(9.64, 8.89, -26.65)
CIE-LCH	lch(9.64, 28.10, 288.46°)
OKLab	oklab(22.4% -0.013 -0.0769)
OKLCH	oklch(22.4% 0.078 260.4)
XYZ	xyz(1.2946, 1.0798, 4.8419)
Luminance	0.0108 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04193F #3F2A04

analogous

#04363F #04193F #0C043F

triadic

#04193F #3F0419 #193F04

tetradic

#04193F #3F0436 #3F2A04 #043F0C

square

#04193F #3F0436 #3F2A04 #043F0C

split-complementary

#04193F #3F0C04 #363F04

monochromatic

#020B1D #020B1D #04193F #083079 #0B47B2

Accessibility & contrast

On white

17.27

#04193F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#04193F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04193F

17.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04193F	#FFFFFF	#000000	##FFFFFF
##04193F	1.00	17.27	1.22	17.27
#FFFFFF	17.27	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#011E40

Deuteranopia (green-blind)

#00183E

Tritanopia (blue-blind)

#002229

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #04193f;
/* rgb */ color: rgb(4, 25, 63);
/* oklch */ color: oklch(22.4% 0.078 260.4);

Tailwind

colors: {
  custom: {
    50: '#505574',
    500: '#04193f',
    950: '#000000',
  },
}

SCSS

$custom: #04193f;
$custom-light: #505574;
$custom-dark: #000000;

JSON

{
  "hex": "#04193f",
  "rgb": {
    "r": 4,
    "g": 25,
    "b": 63
  },
  "hsl": {
    "h": 218.644,
    "s": 88.06,
    "l": 13.137
  },
  "oklch": {
    "l": 0.224,
    "c": 0.07799,
    "h": 260.4
  },
  "luminance": 0.0108
}

Semantic roles & 50–950 ramp

primary

#04193F

secondary

#805E1E

accent

#B32AFE

background

#F4F4F7

surface

#E7E7ED

border

#C3C3C8

text

#020208

muted

#78787B

Preview Lab

Preview with #04193F

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

Preview Lab → · Contrast checker → · Palette generator →