#04142B#04142B

#04142B is a very dark, muted blue. Relative luminance 0.007; OKLCH L 19.2% C 0.052 H 256.4°. Best body text is #FFFFFF at 18.42:1 contrast (WCAG AA passes).

Color values

HEX	#04142B
RGB	rgb(4, 20, 43)
HSL	hsl(215, 83%, 9%)
HSV	hsv(215, 91%, 17%)
CMYK	cmyk(90.7%, 53.5%, 0%, 83.1%)
CIE-LAB	lab(6.33, 2.88, -17.44)
CIE-LCH	lch(6.33, 17.67, 279.38°)
OKLab	oklab(19.22% -0.0122 -0.0506)
OKLCH	oklch(19.22% 0.052 256.4)
XYZ	xyz(0.7361, 0.7005, 2.3814)
Luminance	0.0070 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04142B #2B1B04

analogous

#04282B #04142B #08042B

triadic

#04142B #2B0414 #142B04

tetradic

#04142B #2B0428 #2B1B04 #042B08

square

#04142B #2B0428 #2B1B04 #042B08

split-complementary

#04142B #2B0804 #282B04

monochromatic

#030D1C #030D1C #04142B #092E63 #0E489B

Accessibility & contrast

On white

18.42

#04142B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#04142B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04142B

18.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04142B	#FFFFFF	#000000	##FFFFFF
##04142B	1.00	18.42	1.14	18.42
#FFFFFF	18.42	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#09162C

Deuteranopia (green-blind)

#03122B

Tritanopia (blue-blind)

#00191D

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #04142b;
/* rgb */ color: rgb(4, 20, 43);
/* oklch */ color: oklch(19.2% 0.052 256.4);

Tailwind

colors: {
  custom: {
    50: '#4a5164',
    500: '#04142b',
    950: '#000000',
  },
}

SCSS

$custom: #04142b;
$custom-light: #4a5164;
$custom-dark: #000000;

JSON

{
  "hex": "#04142b",
  "rgb": {
    "r": 4,
    "g": 20,
    "b": 43
  },
  "hsl": {
    "h": 215.385,
    "s": 82.979,
    "l": 9.216
  },
  "oklch": {
    "l": 0.19221,
    "c": 0.05202,
    "h": 256.4
  },
  "luminance": 0.00701
}

Semantic roles & 50–950 ramp

primary

#04142B

secondary

#6E4D1D

accent

#A62EF9

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010205

muted

#77787A

Preview Lab

Preview with #04142B

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

Preview Lab → · Contrast checker → · Palette generator →