#040F16#040F16

#040F16 is a very dark, muted cyan. Relative luminance 0.004; OKLCH L 16.1% C 0.023 H 235.0°. Best body text is #FFFFFF at 19.35:1 contrast (WCAG AA passes).

Color values

HEX	#040F16
RGB	rgb(4, 15, 22)
HSL	hsl(203, 69%, 5%)
HSV	hsv(203, 82%, 9%)
CMYK	cmyk(81.8%, 31.8%, 0%, 91.4%)
CIE-LAB	lab(3.84, -1.58, -5.13)
CIE-LCH	lch(3.84, 5.37, 252.85°)
OKLab	oklab(16.09% -0.0133 -0.0191)
OKLCH	oklch(16.09% 0.023 235)
XYZ	xyz(0.3657, 0.4254, 0.8217)
Luminance	0.0043 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040F16 #160B04

analogous

#041614 #040F16 #040616

triadic

#040F16 #16040F #0F1604

tetradic

#040F16 #140416 #160B04 #061604

square

#040F16 #140416 #160B04 #061604

split-complementary

#040F16 #160406 #161404

monochromatic

#05121A #05121A #05121A #0D324A #17567E

Accessibility & contrast

On white

19.35

#040F16 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#040F16 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040F16

19.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040F16	#FFFFFF	#000000	##FFFFFF
##040F16	1.00	19.35	1.09	19.35
#FFFFFF	19.35	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C0F16

Deuteranopia (green-blind)

#090D16

Tritanopia (blue-blind)

#001111

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #040f16;
/* rgb */ color: rgb(4, 15, 22);
/* oklch */ color: oklch(16.1% 0.023 235.0);

Tailwind

colors: {
  custom: {
    50: '#484e52',
    500: '#040f16',
    950: '#000000',
  },
}

SCSS

$custom: #040f16;
$custom-light: #484e52;
$custom-dark: #000000;

JSON

{
  "hex": "#040f16",
  "rgb": {
    "r": 4,
    "g": 15,
    "b": 22
  },
  "hsl": {
    "h": 203.333,
    "s": 69.231,
    "l": 5.098
  },
  "oklch": {
    "l": 0.16087,
    "c": 0.02327,
    "h": 235
  },
  "luminance": 0.00425
}

Semantic roles & 50–950 ramp

primary

#040F16

secondary

#57351E

accent

#803CEC

background

#F4F4F4

surface

#E6E7E7

border

#C2C3C3

text

#000102

muted

#777778

Preview Lab

Preview with #040F16

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

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