#040E1E#040E1E

#040E1E is a very dark, muted blue. Relative luminance 0.004; OKLCH L 16.4% C 0.038 H 256.9°. Best body text is #FFFFFF at 19.32:1 contrast (WCAG AA passes).

Color values

HEX	#040E1E
RGB	rgb(4, 14, 30)
HSL	hsl(217, 76%, 7%)
HSV	hsv(217, 87%, 12%)
CMYK	cmyk(86.7%, 53.3%, 0%, 88.2%)
CIE-LAB	lab(3.92, 1.20, -11.24)
CIE-LCH	lch(3.92, 11.30, 276.09°)
OKLab	oklab(16.35% -0.0086 -0.0369)
OKLCH	oklch(16.35% 0.038 256.9)
XYZ	xyz(0.4414, 0.4336, 1.2885)
Luminance	0.0043 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040E1E #1E1404

analogous

#041B1E #040E1E #07041E

triadic

#040E1E #1E040E #0E1E04

tetradic

#040E1E #1E041B #1E1404 #041E07

square

#040E1E #1E041B #1E1404 #041E07

split-complementary

#040E1E #1E0704 #1B1E04

monochromatic

#040D1B #040D1B #040E1E #0B2754 #12408A

Accessibility & contrast

On white

19.32

#040E1E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#040E1E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040E1E

19.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040E1E	#FFFFFF	#000000	##FFFFFF
##040E1E	1.00	19.32	1.09	19.32
#FFFFFF	19.32	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#070F1F

Deuteranopia (green-blind)

#040D1E

Tritanopia (blue-blind)

#001214

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #040e1e;
/* rgb */ color: rgb(4, 14, 30);
/* oklch */ color: oklch(16.4% 0.038 256.9);

Tailwind

colors: {
  custom: {
    50: '#484d59',
    500: '#040e1e',
    950: '#000000',
  },
}

SCSS

$custom: #040e1e;
$custom-light: #484d59;
$custom-dark: #000000;

JSON

{
  "hex": "#040e1e",
  "rgb": {
    "r": 4,
    "g": 14,
    "b": 30
  },
  "hsl": {
    "h": 216.923,
    "s": 76.471,
    "l": 6.667
  },
  "oklch": {
    "l": 0.16354,
    "c": 0.03789,
    "h": 256.9
  },
  "luminance": 0.00434
}

Semantic roles & 50–950 ramp

primary

#040E1E

secondary

#61471D

accent

#AA35F3

background

#F4F4F5

surface

#E6E7E9

border

#C2C3C5

text

#000103

muted

#777778

Preview Lab

Preview with #040E1E

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

Preview Lab → · Contrast checker → · Palette generator →