#04132B#04132B

#04132B is a very dark, muted blue. Relative luminance 0.007; OKLCH L 18.9% C 0.054 H 258.0°. Best body text is #FFFFFF at 18.53:1 contrast (WCAG AA passes).

Color values

HEX	#04132B
RGB	rgb(4, 19, 43)
HSL	hsl(217, 83%, 9%)
HSV	hsv(217, 91%, 17%)
CMYK	cmyk(90.7%, 55.8%, 0%, 83.1%)
CIE-LAB	lab(6.01, 3.52, -17.93)
CIE-LCH	lch(6.01, 18.27, 281.10°)
OKLab	oklab(18.93% -0.0111 -0.0523)
OKLCH	oklch(18.93% 0.054 258)
XYZ	xyz(0.7188, 0.6659, 2.3757)
Luminance	0.0067 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04132B #2B1C04

analogous

#04272B #04132B #09042B

triadic

#04132B #2B0413 #132B04

tetradic

#04132B #2B0427 #2B1C04 #042B09

square

#04132B #2B0427 #2B1C04 #042B09

split-complementary

#04132B #2B0904 #272B04

monochromatic

#030C1C #030C1C #04132B #092C63 #0E449B

Accessibility & contrast

On white

18.53

#04132B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#04132B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04132B

18.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04132B	#FFFFFF	#000000	##FFFFFF
##04132B	1.00	18.53	1.13	18.53
#FFFFFF	18.53	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#07152C

Deuteranopia (green-blind)

#02122B

Tritanopia (blue-blind)

#00191C

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #04132b;
/* rgb */ color: rgb(4, 19, 43);
/* oklch */ color: oklch(18.9% 0.054 258.0);

Tailwind

colors: {
  custom: {
    50: '#4a5064',
    500: '#04132b',
    950: '#000000',
  },
}

SCSS

$custom: #04132b;
$custom-light: #4a5064;
$custom-dark: #000000;

JSON

{
  "hex": "#04132b",
  "rgb": {
    "r": 4,
    "g": 19,
    "b": 43
  },
  "hsl": {
    "h": 216.923,
    "s": 82.979,
    "l": 9.216
  },
  "oklch": {
    "l": 0.18934,
    "c": 0.05351,
    "h": 258
  },
  "luminance": 0.00666
}

Semantic roles & 50–950 ramp

primary

#04132B

secondary

#6E4F1D

accent

#AB2EF9

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010205

muted

#77787A

Preview Lab

Preview with #04132B

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

Preview Lab → · Contrast checker → · Palette generator →