#04071B#04071B

#04071B is a very dark, muted blue. Relative luminance 0.003; OKLCH L 14.0% C 0.044 H 270.6°. Best body text is #FFFFFF at 19.97:1 contrast (WCAG AA passes).

Color values

HEX	#04071B
RGB	rgb(4, 7, 27)
HSL	hsl(232, 74%, 6%)
HSV	hsv(232, 85%, 11%)
CMYK	cmyk(85.2%, 74.1%, 0%, 89.4%)
CIE-LAB	lab(2.32, 3.26, -11.24)
CIE-LCH	lch(2.32, 11.70, 286.18°)
OKLab	oklab(13.95% 0.0005 -0.0443)
OKLCH	oklch(13.95% 0.044 270.6)
XYZ	xyz(0.3238, 0.2569, 1.0692)
Luminance	0.0026 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04071B #1B1804

analogous

#04121B #04071B #0C041B

triadic

#04071B #1B0407 #071B04

tetradic

#04071B #1B0412 #1B1804 #041B0C

square

#04071B #1B0412 #1B1804 #041B0C

split-complementary

#04071B #1B0C04 #121B04

monochromatic

#04071B #04071B #04071B #0C1550 #142386

Accessibility & contrast

On white

19.97

#04071B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.05

#04071B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04071B

19.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04071B	#FFFFFF	#000000	##FFFFFF
##04071B	1.00	19.97	1.05	19.97
#FFFFFF	19.97	1.00	21.00	1.00
#000000	1.05	21.00	1.00	21.00
##FFFFFF	19.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#010A1C

Deuteranopia (green-blind)

#00081B

Tritanopia (blue-blind)

#000B0F

Achromatopsia (no color)

#080808

Design tokens & code

CSS

--color: #04071b;
/* rgb */ color: rgb(4, 7, 27);
/* oklch */ color: oklch(14.0% 0.044 270.6);

Tailwind

colors: {
  custom: {
    50: '#484a57',
    500: '#04071b',
    950: '#000000',
  },
}

SCSS

$custom: #04071b;
$custom-light: #484a57;
$custom-dark: #000000;

JSON

{
  "hex": "#04071b",
  "rgb": {
    "r": 4,
    "g": 7,
    "b": 27
  },
  "hsl": {
    "h": 232.174,
    "s": 74.194,
    "l": 6.078
  },
  "oklch": {
    "l": 0.13951,
    "c": 0.04432,
    "h": 270.6
  },
  "luminance": 0.00257
}

Semantic roles & 50–950 ramp

primary

#04071B

secondary

#5D551E

accent

#D937F1

background

#F4F4F5

surface

#E6E7E9

border

#C2C3C5

text

#000103

muted

#777778

Preview Lab

Preview with #04071B

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

Preview Lab → · Contrast checker → · Palette generator →