#04193C#04193C

#04193C is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.1% C 0.073 H 259.4°. Best body text is #FFFFFF at 17.36:1 contrast (WCAG AA passes).

Color values

HEX	#04193C
RGB	rgb(4, 25, 60)
HSL	hsl(218, 88%, 13%)
HSV	hsv(218, 93%, 24%)
CMYK	cmyk(93.3%, 58.3%, 0%, 76.5%)
CIE-LAB	lab(9.38, 7.45, -24.94)
CIE-LCH	lch(9.38, 26.03, 286.64°)
OKLab	oklab(22.12% -0.0135 -0.0718)
OKLCH	oklch(22.12% 0.073 259.4)
XYZ	xyz(1.2130, 1.0472, 4.4123)
Luminance	0.0105 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04193C #3C2704

analogous

#04353C #04193C #0B043C

triadic

#04193C #3C0419 #193C04

tetradic

#04193C #3C0435 #3C2704 #043C0B

square

#04193C #3C0435 #3C2704 #043C0B

split-complementary

#04193C #3C0B04 #353C04

monochromatic

#020C1D #020C1D #04193C #083175 #0C49AF

Accessibility & contrast

On white

17.36

#04193C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#04193C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04193C

17.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04193C	#FFFFFF	#000000	##FFFFFF
##04193C	1.00	17.36	1.21	17.36
#FFFFFF	17.36	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#041D3D

Deuteranopia (green-blind)

#00183B

Tritanopia (blue-blind)

#002227

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #04193c;
/* rgb */ color: rgb(4, 25, 60);
/* oklch */ color: oklch(22.1% 0.073 259.4);

Tailwind

colors: {
  custom: {
    50: '#4f5572',
    500: '#04193c',
    950: '#000000',
  },
}

SCSS

$custom: #04193c;
$custom-light: #4f5572;
$custom-dark: #000000;

JSON

{
  "hex": "#04193c",
  "rgb": {
    "r": 4,
    "g": 25,
    "b": 60
  },
  "hsl": {
    "h": 217.5,
    "s": 87.5,
    "l": 12.549
  },
  "oklch": {
    "l": 0.22118,
    "c": 0.07311,
    "h": 259.4
  },
  "luminance": 0.01047
}

Semantic roles & 50–950 ramp

primary

#04193C

secondary

#7E5A1E

accent

#AE2AFE

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020208

muted

#78787B

Preview Lab

Preview with #04193C

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

Preview Lab → · Contrast checker → · Palette generator →