#04090F#04090F

#04090F is a very dark, near-neutral cyan. Relative luminance 0.003; OKLCH L 13.6% C 0.017 H 247.0°. Best body text is #FFFFFF at 19.98:1 contrast (WCAG AA passes).

Color values

HEX	#04090F
RGB	rgb(4, 9, 15)
HSL	hsl(213, 58%, 4%)
HSV	hsv(213, 73%, 6%)
CMYK	cmyk(73.3%, 40%, 0%, 94.1%)
CIE-LAB	lab(2.31, -0.37, -3.01)
CIE-LCH	lch(2.31, 3.03, 262.99°)
OKLab	oklab(13.63% -0.0067 -0.0157)
OKLCH	oklch(13.63% 0.017 247)
XYZ	xyz(0.2340, 0.2557, 0.4889)
Luminance	0.0026 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04090F #0F0A04

analogous

#040E0F #04090F #04040F

triadic

#04090F #0F0409 #090F04

tetradic

#04090F #0F040E #0F0A04 #040F04

square

#04090F #0F040E #0F0A04 #040F04

split-complementary

#04090F #0F0404 #0E0F04

monochromatic

#060E18 #060E18 #060E18 #11263F #1E4370

Accessibility & contrast

On white

19.98

#04090F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.05

#04090F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04090F

19.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04090F	#FFFFFF	#000000	##FFFFFF
##04090F	1.00	19.98	1.05	19.98
#FFFFFF	19.98	1.00	21.00	1.00
#000000	1.05	21.00	1.00	21.00
##FFFFFF	19.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#07090F

Deuteranopia (green-blind)

#06080F

Tritanopia (blue-blind)

#020A0B

Achromatopsia (no color)

#080808

Design tokens & code

CSS

--color: #04090f;
/* rgb */ color: rgb(4, 9, 15);
/* oklch */ color: oklch(13.6% 0.017 247.0);

Tailwind

colors: {
  custom: {
    50: '#484b4e',
    500: '#04090f',
    950: '#000000',
  },
}

SCSS

$custom: #04090f;
$custom-light: #484b4e;
$custom-dark: #000000;

JSON

{
  "hex": "#04090f",
  "rgb": {
    "r": 4,
    "g": 9,
    "b": 15
  },
  "hsl": {
    "h": 212.727,
    "s": 57.895,
    "l": 3.725
  },
  "oklch": {
    "l": 0.13632,
    "c": 0.01708,
    "h": 247
  },
  "luminance": 0.00256
}

Semantic roles & 50–950 ramp

primary

#04090F

secondary

#4E3921

accent

#9B47E1

background

#F4F4F4

surface

#E6E7E7

border

#C2C3C3

text

#000101

muted

#777777

Preview Lab

Preview with #04090F

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

Preview Lab → · Contrast checker → · Palette generator →