#040E18#040E18

#040E18 is a very dark, muted cyan. Relative luminance 0.004; OKLCH L 15.9% C 0.027 H 246.5°. Best body text is #FFFFFF at 19.42:1 contrast (WCAG AA passes).

Color values

HEX	#040E18
RGB	rgb(4, 14, 24)
HSL	hsl(210, 71%, 5%)
HSV	hsv(210, 83%, 9%)
CMYK	cmyk(83.3%, 41.7%, 0%, 90.6%)
CIE-LAB	lab(3.67, -0.57, -6.88)
CIE-LCH	lch(3.67, 6.90, 265.30°)
OKLab	oklab(15.9% -0.0108 -0.025)
OKLCH	oklch(15.9% 0.027 246.5)
XYZ	xyz(0.3719, 0.4058, 0.9227)
Luminance	0.0041 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040E18 #180E04

analogous

#041818 #040E18 #040418

triadic

#040E18 #18040E #0E1804

tetradic

#040E18 #180418 #180E04 #041804

square

#040E18 #180418 #180E04 #041804

split-complementary

#040E18 #180404 #181804

monochromatic

#040F1A #040F1A #040F1A #0D2D4C #154B81

Accessibility & contrast

On white

19.42

#040E18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#040E18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040E18

19.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040E18	#FFFFFF	#000000	##FFFFFF
##040E18	1.00	19.42	1.08	19.42
#FFFFFF	19.42	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A0E18

Deuteranopia (green-blind)

#070C18

Tritanopia (blue-blind)

#001011

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #040e18;
/* rgb */ color: rgb(4, 14, 24);
/* oklch */ color: oklch(15.9% 0.027 246.5);

Tailwind

colors: {
  custom: {
    50: '#484d54',
    500: '#040e18',
    950: '#000000',
  },
}

SCSS

$custom: #040e18;
$custom-light: #484d54;
$custom-dark: #000000;

JSON

{
  "hex": "#040e18",
  "rgb": {
    "r": 4,
    "g": 14,
    "b": 24
  },
  "hsl": {
    "h": 210,
    "s": 71.429,
    "l": 5.49
  },
  "oklch": {
    "l": 0.15895,
    "c": 0.02723,
    "h": 246.5
  },
  "luminance": 0.00406
}

Semantic roles & 50–950 ramp

primary

#040E18

secondary

#5A3C1E

accent

#943AEE

background

#F4F4F4

surface

#E6E7E7

border

#C2C3C3

text

#000102

muted

#777778

Preview Lab

Preview with #040E18

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

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