#040E19#040E19

#040E19 is a very dark, muted cyan. Relative luminance 0.004; OKLCH L 16.0% C 0.029 H 248.9°. Best body text is #FFFFFF at 19.41:1 contrast (WCAG AA passes).

Color values

HEX	#040E19
RGB	rgb(4, 14, 25)
HSL	hsl(211, 72%, 6%)
HSV	hsv(211, 84%, 10%)
CMYK	cmyk(84%, 44%, 0%, 90.2%)
CIE-LAB	lab(3.70, -0.29, -7.61)
CIE-LCH	lch(3.70, 7.62, 267.78°)
OKLab	oklab(15.97% -0.0104 -0.027)
OKLCH	oklch(15.97% 0.029 248.9)
XYZ	xyz(0.3825, 0.4100, 0.9785)
Luminance	0.0041 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040E19 #190F04

analogous

#041819 #040E19 #040419

triadic

#040E19 #19040E #0E1904

tetradic

#040E19 #190418 #190F04 #041904

square

#040E19 #190418 #190F04 #041904

split-complementary

#040E19 #190404 #181904

monochromatic

#040F1A #040F1A #040F1A #0C2C4E #154983

Accessibility & contrast

On white

19.41

#040E19 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#040E19 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040E19

19.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040E19	#FFFFFF	#000000	##FFFFFF
##040E19	1.00	19.41	1.08	19.41
#FFFFFF	19.41	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#090E19

Deuteranopia (green-blind)

#070C19

Tritanopia (blue-blind)

#001112

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #040e19;
/* rgb */ color: rgb(4, 14, 25);
/* oklch */ color: oklch(16.0% 0.029 248.9);

Tailwind

colors: {
  custom: {
    50: '#484d55',
    500: '#040e19',
    950: '#000000',
  },
}

SCSS

$custom: #040e19;
$custom-light: #484d55;
$custom-dark: #000000;

JSON

{
  "hex": "#040e19",
  "rgb": {
    "r": 4,
    "g": 14,
    "b": 25
  },
  "hsl": {
    "h": 211.429,
    "s": 72.414,
    "l": 5.686
  },
  "oklch": {
    "l": 0.15967,
    "c": 0.02894,
    "h": 248.9
  },
  "luminance": 0.0041
}

Semantic roles & 50–950 ramp

primary

#040E19

secondary

#5B3E1E

accent

#9839EF

background

#F4F4F4

surface

#E6E7E7

border

#C2C3C3

text

#000103

muted

#777778

Preview Lab

Preview with #040E19

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

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