#04052D#04052D

#04052D is a very dark, moderate blue. Relative luminance 0.003; OKLCH L 15.5% C 0.079 H 270.9°. Best body text is #FFFFFF at 19.72:1 contrast (WCAG AA passes).

Color values

HEX	#04052D
RGB	rgb(4, 5, 45)
HSL	hsl(239, 84%, 10%)
HSV	hsv(239, 91%, 18%)
CMYK	cmyk(91.1%, 88.9%, 0%, 82.4%)
CIE-LAB	lab(2.92, 11.06, -24.32)
CIE-LCH	lch(2.92, 26.72, 294.46°)
OKLab	oklab(15.52% 0.0013 -0.0792)
OKLCH	oklch(15.52% 0.079 270.9)
XYZ	xyz(0.5778, 0.3238, 2.5142)
Luminance	0.0032 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04052D #2D2C04

analogous

#041A2D #04052D #18042D

triadic

#04052D #2D0405 #052D04

tetradic

#04052D #2D041A #2D2C04 #042D18

square

#04052D #2D041A #2D2C04 #042D18

split-complementary

#04052D #2D1804 #1A2D04

monochromatic

#02031C #02031C #04052D #090B65 #0E119D

Accessibility & contrast

On white

19.72

#04052D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.06

#04052D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04052D

19.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04052D	#FFFFFF	#000000	##FFFFFF
##04052D	1.00	19.72	1.06	19.72
#FFFFFF	19.72	1.00	21.00	1.00
#000000	1.06	21.00	1.00	21.00
##FFFFFF	19.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000D2E

Deuteranopia (green-blind)

#00092C

Tritanopia (blue-blind)

#001018

Achromatopsia (no color)

#0B0B0B

Design tokens & code

CSS

--color: #04052d;
/* rgb */ color: rgb(4, 5, 45);
/* oklch */ color: oklch(15.5% 0.079 270.9);

Tailwind

colors: {
  custom: {
    50: '#494966',
    500: '#04052d',
    950: '#000000',
  },
}

SCSS

$custom: #04052d;
$custom-light: #494966;
$custom-dark: #000000;

JSON

{
  "hex": "#04052d",
  "rgb": {
    "r": 4,
    "g": 5,
    "b": 45
  },
  "hsl": {
    "h": 238.537,
    "s": 83.673,
    "l": 9.608
  },
  "oklch": {
    "l": 0.15524,
    "c": 0.07925,
    "h": 270.9
  },
  "luminance": 0.00324
}

Semantic roles & 50–950 ramp

primary

#04052D

secondary

#706E1D

accent

#F52EFA

background

#F4F4F6

surface

#E7E6EB

border

#C3C2C6

text

#010006

muted

#77777A

Preview Lab

Preview with #04052D

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

Preview Lab → · Contrast checker → · Palette generator →