#04042D#04042D

#04042D is a very dark, moderate blue. Relative luminance 0.003; OKLCH L 15.2% C 0.081 H 271.4°. Best body text is #FFFFFF at 19.80:1 contrast (WCAG AA passes).

Color values

HEX	#04042D
RGB	rgb(4, 4, 45)
HSL	hsl(240, 84%, 10%)
HSV	hsv(240, 91%, 18%)
CMYK	cmyk(91.1%, 91.1%, 0%, 82.4%)
CIE-LAB	lab(2.73, 11.47, -24.63)
CIE-LCH	lch(2.73, 27.17, 294.96°)
OKLab	oklab(15.25% 0.002 -0.0811)
OKLCH	oklch(15.25% 0.081 271.4)
XYZ	xyz(0.5670, 0.3020, 2.5105)
Luminance	0.0030 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04042D #2D2D04

analogous

#04192D #04042D #19042D

triadic

#04042D #2D0404 #042D04

tetradic

#04042D #2D0419 #2D2D04 #042D19

square

#04042D #2D0419 #2D2D04 #042D19

split-complementary

#04042D #2D1904 #192D04

monochromatic

#02021C #02021C #04042D #090965 #0E0E9D

Accessibility & contrast

On white

19.80

#04042D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.06

#04042D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04042D

19.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04042D	#FFFFFF	#000000	##FFFFFF
##04042D	1.00	19.80	1.06	19.80
#FFFFFF	19.80	1.00	21.00	1.00
#000000	1.06	21.00	1.00	21.00
##FFFFFF	19.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000C2E

Deuteranopia (green-blind)

#00082C

Tritanopia (blue-blind)

#000F17

Achromatopsia (no color)

#0A0A0A

Design tokens & code

CSS

--color: #04042d;
/* rgb */ color: rgb(4, 4, 45);
/* oklch */ color: oklch(15.2% 0.081 271.4);

Tailwind

colors: {
  custom: {
    50: '#494866',
    500: '#04042d',
    950: '#000000',
  },
}

SCSS

$custom: #04042d;
$custom-light: #494866;
$custom-dark: #000000;

JSON

{
  "hex": "#04042d",
  "rgb": {
    "r": 4,
    "g": 4,
    "b": 45
  },
  "hsl": {
    "h": 240,
    "s": 83.673,
    "l": 9.608
  },
  "oklch": {
    "l": 0.15246,
    "c": 0.08112,
    "h": 271.4
  },
  "luminance": 0.00302
}

Semantic roles & 50–950 ramp

primary

#04042D

secondary

#70701D

accent

#FA2EFA

background

#F4F4F6

surface

#E7E6EB

border

#C3C2C6

text

#010006

muted

#77777A

Preview Lab

Preview with #04042D

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

Preview Lab → · Contrast checker → · Palette generator →