#04052F#04052F

#04052F is a very dark, moderate blue. Relative luminance 0.003; OKLCH L 15.8% C 0.082 H 270.6°. Best body text is #FFFFFF at 19.66:1 contrast (WCAG AA passes).

Color values

HEX	#04052F
RGB	rgb(4, 5, 47)
HSL	hsl(239, 84%, 10%)
HSV	hsv(239, 91%, 18%)
CMYK	cmyk(91.5%, 89.4%, 0%, 81.6%)
CIE-LAB	lab(3.07, 12.07, -25.60)
CIE-LCH	lch(3.07, 28.31, 295.24°)
OKLab	oklab(15.8% 0.0008 -0.0823)
OKLCH	oklch(15.8% 0.082 270.6)
XYZ	xyz(0.6173, 0.3395, 2.7218)
Luminance	0.0034 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04052F #2F2E04

analogous

#041A2F #04052F #19042F

triadic

#04052F #2F0405 #052F04

tetradic

#04052F #2F041A #2F2E04 #042F19

square

#04052F #2F041A #2F2E04 #042F19

split-complementary

#04052F #2F1904 #1A2F04

monochromatic

#02031C #02031C #04052F #090B67 #0E11A0

Accessibility & contrast

On white

19.66

#04052F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.07

#04052F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04052F

19.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04052F	#FFFFFF	#000000	##FFFFFF
##04052F	1.00	19.66	1.07	19.66
#FFFFFF	19.66	1.00	21.00	1.00
#000000	1.07	21.00	1.00	21.00
##FFFFFF	19.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000D30

Deuteranopia (green-blind)

#00092E

Tritanopia (blue-blind)

#001119

Achromatopsia (no color)

#0B0B0B

Design tokens & code

CSS

--color: #04052f;
/* rgb */ color: rgb(4, 5, 47);
/* oklch */ color: oklch(15.8% 0.082 270.6);

Tailwind

colors: {
  custom: {
    50: '#4a4868',
    500: '#04052f',
    950: '#000000',
  },
}

SCSS

$custom: #04052f;
$custom-light: #4a4868;
$custom-dark: #000000;

JSON

{
  "hex": "#04052f",
  "rgb": {
    "r": 4,
    "g": 5,
    "b": 47
  },
  "hsl": {
    "h": 238.605,
    "s": 84.314,
    "l": 10
  },
  "oklch": {
    "l": 0.15799,
    "c": 0.0823,
    "h": 270.6
  },
  "luminance": 0.0034
}

Semantic roles & 50–950 ramp

primary

#04052F

secondary

#72701D

accent

#F62DFB

background

#F4F4F6

surface

#E7E6EB

border

#C3C2C6

text

#010006

muted

#77777A

Preview Lab

Preview with #04052F

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

Preview Lab → · Contrast checker → · Palette generator →