#04143A#04143A

#04143A is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.6% C 0.077 H 262.8°. Best body text is #FFFFFF at 18.00:1 contrast (WCAG AA passes).

Color values

HEX	#04143A
RGB	rgb(4, 20, 58)
HSL	hsl(222, 87%, 12%)
HSV	hsv(222, 93%, 23%)
CMYK	cmyk(93.1%, 65.5%, 0%, 77.3%)
CIE-LAB	lab(7.51, 10.50, -26.54)
CIE-LCH	lch(7.51, 28.54, 291.59°)
OKLab	oklab(20.63% -0.0097 -0.0767)
OKLCH	oklch(20.63% 0.077 262.8)
XYZ	xyz(1.0637, 0.8315, 4.1066)
Luminance	0.0083 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04143A #3A2A04

analogous

#042F3A #04143A #0F043A

triadic

#04143A #3A0414 #143A04

tetradic

#04143A #3A042F #3A2A04 #043A0F

square

#04143A #3A042F #3A2A04 #043A0F

split-complementary

#04143A #3A0F04 #2F3A04

monochromatic

#020A1D #020A1D #04143A #082873 #0C3BAD

Accessibility & contrast

On white

18.00

#04143A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#04143A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04143A

18.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04143A	#FFFFFF	#000000	##FFFFFF
##04143A	1.00	18.00	1.17	18.00
#FFFFFF	18.00	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	18.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00193B

Deuteranopia (green-blind)

#001439

Tritanopia (blue-blind)

#001E24

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #04143a;
/* rgb */ color: rgb(4, 20, 58);
/* oklch */ color: oklch(20.6% 0.077 262.8);

Tailwind

colors: {
  custom: {
    50: '#4f5070',
    500: '#04143a',
    950: '#000000',
  },
}

SCSS

$custom: #04143a;
$custom-light: #4f5070;
$custom-dark: #000000;

JSON

{
  "hex": "#04143a",
  "rgb": {
    "r": 4,
    "g": 20,
    "b": 58
  },
  "hsl": {
    "h": 222.222,
    "s": 87.097,
    "l": 12.157
  },
  "oklch": {
    "l": 0.20634,
    "c": 0.07733,
    "h": 262.8
  },
  "luminance": 0.00832
}

Semantic roles & 50–950 ramp

primary

#04143A

secondary

#7C601E

accent

#BF2BFD

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020207

muted

#78787A

Preview Lab

Preview with #04143A

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

Preview Lab → · Contrast checker → · Palette generator →