#04133A#04133A

#04133A is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.4% C 0.079 H 263.5°. Best body text is #FFFFFF at 18.11:1 contrast (WCAG AA passes).

Color values

HEX	#04133A
RGB	rgb(4, 19, 58)
HSL	hsl(223, 87%, 12%)
HSV	hsv(223, 93%, 23%)
CMYK	cmyk(93.1%, 67.2%, 0%, 77.3%)
CIE-LAB	lab(7.20, 11.24, -27.04)
CIE-LCH	lch(7.20, 29.28, 292.57°)
OKLab	oklab(20.39% -0.0089 -0.0783)
OKLCH	oklch(20.39% 0.079 263.5)
XYZ	xyz(1.0464, 0.7969, 4.1008)
Luminance	0.0080 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04133A #3A2B04

analogous

#042E3A #04133A #10043A

triadic

#04133A #3A0413 #133A04

tetradic

#04133A #3A042E #3A2B04 #043A10

square

#04133A #3A042E #3A2B04 #043A10

split-complementary

#04133A #3A1004 #2E3A04

monochromatic

#02091D #02091D #04133A #082673 #0C39AD

Accessibility & contrast

On white

18.11

#04133A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#04133A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04133A

18.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04133A	#FFFFFF	#000000	##FFFFFF
##04133A	1.00	18.11	1.16	18.11
#FFFFFF	18.11	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00193B

Deuteranopia (green-blind)

#001339

Tritanopia (blue-blind)

#001D24

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #04133a;
/* rgb */ color: rgb(4, 19, 58);
/* oklch */ color: oklch(20.4% 0.079 263.5);

Tailwind

colors: {
  custom: {
    50: '#4f5070',
    500: '#04133a',
    950: '#000000',
  },
}

SCSS

$custom: #04133a;
$custom-light: #4f5070;
$custom-dark: #000000;

JSON

{
  "hex": "#04133a",
  "rgb": {
    "r": 4,
    "g": 19,
    "b": 58
  },
  "hsl": {
    "h": 223.333,
    "s": 87.097,
    "l": 12.157
  },
  "oklch": {
    "l": 0.20385,
    "c": 0.07883,
    "h": 263.5
  },
  "luminance": 0.00797
}

Semantic roles & 50–950 ramp

primary

#04133A

secondary

#7C621E

accent

#C32BFD

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020207

muted

#78787A

Preview Lab

Preview with #04133A

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

Preview Lab → · Contrast checker → · Palette generator →