#04050F#04050F

#04050F is a very dark, muted blue. Relative luminance 0.002; OKLCH L 12.0% C 0.025 H 275.7°. Best body text is #FFFFFF at 20.31:1 contrast (WCAG AA passes).

Color values

HEX	#04050F
RGB	rgb(4, 5, 15)
HSL	hsl(235, 58%, 4%)
HSV	hsv(235, 73%, 6%)
CMYK	cmyk(73.3%, 66.7%, 0%, 94.1%)
CIE-LAB	lab(1.52, 1.23, -4.16)
CIE-LCH	lch(1.52, 4.34, 286.50°)
OKLab	oklab(12.04% 0.0025 -0.025)
OKLCH	oklch(12.04% 0.025 275.7)
XYZ	xyz(0.1905, 0.1688, 0.4744)
Luminance	0.0017 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04050F #0F0E04

analogous

#040A0F #04050F #08040F

triadic

#04050F #0F0405 #050F04

tetradic

#04050F #0F040A #0F0E04 #040F08

square

#04050F #0F040A #0F0E04 #040F08

split-complementary

#04050F #0F0804 #0A0F04

monochromatic

#060818 #060818 #060818 #11153F #1E2570

Accessibility & contrast

On white

20.31

#04050F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.03

#04050F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04050F

20.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04050F	#FFFFFF	#000000	##FFFFFF
##04050F	1.00	20.31	1.03	20.31
#FFFFFF	20.31	1.00	21.00	1.00
#000000	1.03	21.00	1.00	21.00
##FFFFFF	20.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#03060F

Deuteranopia (green-blind)

#02050F

Tritanopia (blue-blind)

#020708

Achromatopsia (no color)

#060606

Design tokens & code

CSS

--color: #04050f;
/* rgb */ color: rgb(4, 5, 15);
/* oklch */ color: oklch(12.0% 0.025 275.7);

Tailwind

colors: {
  custom: {
    50: '#48494e',
    500: '#04050f',
    950: '#000000',
  },
}

SCSS

$custom: #04050f;
$custom-light: #48494e;
$custom-dark: #000000;

JSON

{
  "hex": "#04050f",
  "rgb": {
    "r": 4,
    "g": 5,
    "b": 15
  },
  "hsl": {
    "h": 234.545,
    "s": 57.895,
    "l": 3.725
  },
  "oklch": {
    "l": 0.12039,
    "c": 0.02514,
    "h": 275.7
  },
  "luminance": 0.00169
}

Semantic roles & 50–950 ramp

primary

#04050F

secondary

#4E4A21

accent

#D347E1

background

#F4F4F4

surface

#E6E6E7

border

#C2C2C3

text

#000001

muted

#777777

Preview Lab

Preview with #04050F

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

Preview Lab → · Contrast checker → · Palette generator →