#04073A#04073A

#04073A is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 17.8% C 0.095 H 268.6°. Best body text is #FFFFFF at 19.15:1 contrast (WCAG AA passes).

Color values

HEX	#04073A
RGB	rgb(4, 7, 58)
HSL	hsl(237, 87%, 12%)
HSV	hsv(237, 93%, 23%)
CMYK	cmyk(93.1%, 87.9%, 0%, 77.3%)
CIE-LAB	lab(4.36, 17.59, -31.64)
CIE-LCH	lch(4.36, 36.20, 299.07°)
OKLab	oklab(17.78% -0.0024 -0.0955)
OKLCH	oklch(17.78% 0.095 268.6)
XYZ	xyz(0.8895, 0.4832, 4.0485)
Luminance	0.0048 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04073A #3A3704

analogous

#04223A #04073A #1C043A

triadic

#04073A #3A0407 #073A04

tetradic

#04073A #3A0422 #3A3704 #043A1C

square

#04073A #3A0422 #3A3704 #043A1C

split-complementary

#04073A #3A1C04 #223A04

monochromatic

#02031D #02031D #04073A #080E73 #0C15AD

Accessibility & contrast

On white

19.15

#04073A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#04073A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04073A

19.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04073A	#FFFFFF	#000000	##FFFFFF
##04073A	1.00	19.15	1.10	19.15
#FFFFFF	19.15	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00123B

Deuteranopia (green-blind)

#000C39

Tritanopia (blue-blind)

#001620

Achromatopsia (no color)

#0F0F0F

Design tokens & code

CSS

--color: #04073a;
/* rgb */ color: rgb(4, 7, 58);
/* oklch */ color: oklch(17.8% 0.095 268.6);

Tailwind

colors: {
  custom: {
    50: '#4f4971',
    500: '#04073a',
    950: '#000000',
  },
}

SCSS

$custom: #04073a;
$custom-light: #4f4971;
$custom-dark: #000000;

JSON

{
  "hex": "#04073a",
  "rgb": {
    "r": 4,
    "g": 7,
    "b": 58
  },
  "hsl": {
    "h": 236.667,
    "s": 87.097,
    "l": 12.157
  },
  "oklch": {
    "l": 0.17783,
    "c": 0.09549,
    "h": 268.6
  },
  "luminance": 0.00483
}

Semantic roles & 50–950 ramp

primary

#04073A

secondary

#7C771E

accent

#F22BFD

background

#F4F4F6

surface

#E7E6EC

border

#C3C2C7

text

#020008

muted

#78777B

Preview Lab

Preview with #04073A

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

Preview Lab → · Contrast checker → · Palette generator →