#040E2C#040E2C

#040E2C is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 17.7% C 0.063 H 264.7°. Best body text is #FFFFFF at 19.01:1 contrast (WCAG AA passes).

Color values

HEX	#040E2C
RGB	rgb(4, 14, 44)
HSL	hsl(225, 83%, 9%)
HSV	hsv(225, 91%, 17%)
CMYK	cmyk(90.9%, 68.2%, 0%, 82.7%)
CIE-LAB	lab(4.71, 6.79, -20.74)
CIE-LCH	lch(4.71, 21.82, 288.13°)
OKLab	oklab(17.66% -0.0059 -0.0628)
OKLCH	oklch(17.66% 0.063 264.7)
XYZ	xyz(0.6616, 0.5217, 2.4482)
Luminance	0.0052 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.85

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040E2C #2C2204

analogous

#04222C #040E2C #0E042C

triadic

#040E2C #2C040E #0E2C04

tetradic

#040E2C #2C0422 #2C2204 #042C0E

square

#040E2C #2C0422 #2C2204 #042C0E

split-complementary

#040E2C #2C0E04 #222C04

monochromatic

#03091C #03091C #040E2C #092064 #0E329C

Accessibility & contrast

On white

19.01

#040E2C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#040E2C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040E2C

19.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040E2C	#FFFFFF	#000000	##FFFFFF
##040E2C	1.00	19.01	1.10	19.01
#FFFFFF	19.01	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00122D

Deuteranopia (green-blind)

#000E2B

Tritanopia (blue-blind)

#00151B

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #040e2c;
/* rgb */ color: rgb(4, 14, 44);
/* oklch */ color: oklch(17.7% 0.063 264.7);

Tailwind

colors: {
  custom: {
    50: '#4a4d65',
    500: '#040e2c',
    950: '#000000',
  },
}

SCSS

$custom: #040e2c;
$custom-light: #4a4d65;
$custom-dark: #000000;

JSON

{
  "hex": "#040e2c",
  "rgb": {
    "r": 4,
    "g": 14,
    "b": 44
  },
  "hsl": {
    "h": 225,
    "s": 83.333,
    "l": 9.412
  },
  "oklch": {
    "l": 0.17659,
    "c": 0.06304,
    "h": 264.7
  },
  "luminance": 0.00522
}

Semantic roles & 50–950 ramp

primary

#040E2C

secondary

#6F5A1D

accent

#C72EFA

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010105

muted

#77777A

Preview Lab

Preview with #040E2C

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

Preview Lab → · Contrast checker → · Palette generator →