#040E27#040E27

#040E27 is a very dark, muted blue. Relative luminance 0.005; OKLCH L 17.2% C 0.054 H 263.1°. Best body text is #FFFFFF at 19.14:1 contrast (WCAG AA passes).

Color values

HEX	#040E27
RGB	rgb(4, 14, 39)
HSL	hsl(223, 81%, 8%)
HSV	hsv(223, 90%, 15%)
CMYK	cmyk(89.7%, 64.1%, 0%, 84.7%)
CIE-LAB	lab(4.39, 4.55, -17.46)
CIE-LCH	lch(4.39, 18.04, 284.60°)
OKLab	oklab(17.16% -0.0065 -0.0539)
OKLCH	oklch(17.16% 0.054 263.1)
XYZ	xyz(0.5732, 0.4863, 1.9827)
Luminance	0.0049 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 7.61

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040E27 #271D04

analogous

#041F27 #040E27 #0B0427

triadic

#040E27 #27040E #0E2704

tetradic

#040E27 #27041F #271D04 #04270B

square

#040E27 #27041F #271D04 #04270B

split-complementary

#040E27 #270B04 #1F2704

monochromatic

#030A1C #030A1C #040E27 #0A225F #0F3696

Accessibility & contrast

On white

19.14

#040E27 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#040E27 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040E27

19.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040E27	#FFFFFF	#000000	##FFFFFF
##040E27	1.00	19.14	1.10	19.14
#FFFFFF	19.14	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#021128

Deuteranopia (green-blind)

#000E26

Tritanopia (blue-blind)

#001418

Achromatopsia (no color)

#0F0F0F

Design tokens & code

CSS

--color: #040e27;
/* rgb */ color: rgb(4, 14, 39);
/* oklch */ color: oklch(17.2% 0.054 263.1);

Tailwind

colors: {
  custom: {
    50: '#494d61',
    500: '#040e27',
    950: '#000000',
  },
}

SCSS

$custom: #040e27;
$custom-light: #494d61;
$custom-dark: #000000;

JSON

{
  "hex": "#040e27",
  "rgb": {
    "r": 4,
    "g": 14,
    "b": 39
  },
  "hsl": {
    "h": 222.857,
    "s": 81.395,
    "l": 8.431
  },
  "oklch": {
    "l": 0.17159,
    "c": 0.05425,
    "h": 263.1
  },
  "luminance": 0.00486
}

Semantic roles & 50–950 ramp

primary

#040E27

secondary

#6A541D

accent

#BF30F8

background

#F4F4F5

surface

#E7E7E9

border

#C3C3C5

text

#010105

muted

#777779

Preview Lab

Preview with #040E27

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

Preview Lab → · Contrast checker → · Palette generator →