#040C20#040C20

#040C20 is a very dark, muted blue. Relative luminance 0.004; OKLCH L 15.9% C 0.045 H 263.0°. Best body text is #FFFFFF at 19.47:1 contrast (WCAG AA passes).

Color values

HEX	#040C20
RGB	rgb(4, 12, 32)
HSL	hsl(223, 78%, 7%)
HSV	hsv(223, 88%, 13%)
CMYK	cmyk(87.5%, 62.5%, 0%, 87.5%)
CIE-LAB	lab(3.55, 2.81, -13.36)
CIE-LCH	lch(3.55, 13.65, 281.89°)
OKLab	oklab(15.93% -0.0055 -0.0444)
OKLCH	oklch(15.93% 0.045 263)
XYZ	xyz(0.4422, 0.3930, 1.4188)
Luminance	0.0039 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040C20 #201804

analogous

#041A20 #040C20 #0A0420

triadic

#040C20 #20040C #0C2004

tetradic

#040C20 #20041A #201804 #04200A

square

#040C20 #20041A #201804 #04200A

split-complementary

#040C20 #200A04 #1A2004

monochromatic

#030A1B #030A1B #040C20 #0B2056 #12358D

Accessibility & contrast

On white

19.47

#040C20 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#040C20 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040C20

19.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040C20	#FFFFFF	#000000	##FFFFFF
##040C20	1.00	19.47	1.08	19.47
#FFFFFF	19.47	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#040E21

Deuteranopia (green-blind)

#010B20

Tritanopia (blue-blind)

#001114

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #040c20;
/* rgb */ color: rgb(4, 12, 32);
/* oklch */ color: oklch(15.9% 0.045 263.0);

Tailwind

colors: {
  custom: {
    50: '#484c5b',
    500: '#040c20',
    950: '#000000',
  },
}

SCSS

$custom: #040c20;
$custom-light: #484c5b;
$custom-dark: #000000;

JSON

{
  "hex": "#040c20",
  "rgb": {
    "r": 4,
    "g": 12,
    "b": 32
  },
  "hsl": {
    "h": 222.857,
    "s": 77.778,
    "l": 7.059
  },
  "oklch": {
    "l": 0.15934,
    "c": 0.04473,
    "h": 263
  },
  "luminance": 0.00393
}

Semantic roles & 50–950 ramp

primary

#040C20

secondary

#634F1D

accent

#BD34F4

background

#F4F4F5

surface

#E6E7E9

border

#C2C3C5

text

#000104

muted

#777779

Preview Lab

Preview with #040C20

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

Preview Lab → · Contrast checker → · Palette generator →