#040A0A#040A0A

#040A0A is a very dark, near-neutral teal. Relative luminance 0.003; OKLCH L 13.7% C 0.012 H 195.9°. Best body text is #FFFFFF at 19.94:1 contrast (WCAG AA passes).

Color values

HEX	#040A0A
RGB	rgb(4, 10, 10)
HSL	hsl(180, 43%, 3%)
HSV	hsv(180, 60%, 4%)
CMYK	cmyk(60%, 0%, 0%, 96.1%)
CIE-LAB	lab(2.39, -1.57, -0.55)
CIE-LCH	lch(2.39, 1.66, 199.43°)
OKLab	oklab(13.69% -0.0115 -0.0033)
OKLCH	oklch(13.69% 0.012 195.9)
XYZ	xyz(0.2134, 0.2648, 0.3270)
Luminance	0.0027 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#040A0A #0A0404

analogous

#040A07 #040A0A #04070A

triadic

#040A0A #0A040A #0A0A04

tetradic

#040A0A #07040A #0A0404 #070A04

square

#040A0A #07040A #0A0404 #070A04

split-complementary

#040A0A #0A0407 #0A0704

monochromatic

#091616 #091616 #091616 #153636 #276161

Accessibility & contrast

On white

19.94

#040A0A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.05

#040A0A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #040A0A

19.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##040A0A	#FFFFFF	#000000	##FFFFFF
##040A0A	1.00	19.94	1.05	19.94
#FFFFFF	19.94	1.00	21.00	1.00
#000000	1.05	21.00	1.00	21.00
##FFFFFF	19.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#09090A

Deuteranopia (green-blind)

#08080A

Tritanopia (blue-blind)

#020A0A

Achromatopsia (no color)

#090909

Design tokens & code

CSS

--color: #040a0a;
/* rgb */ color: rgb(4, 10, 10);
/* oklch */ color: oklch(13.7% 0.012 195.9);

Tailwind

colors: {
  custom: {
    50: '#484b4b',
    500: '#040a0a',
    950: '#000000',
  },
}

SCSS

$custom: #040a0a;
$custom-light: #484b4b;
$custom-dark: #000000;

JSON

{
  "hex": "#040a0a",
  "rgb": {
    "r": 4,
    "g": 10,
    "b": 10
  },
  "hsl": {
    "h": 180,
    "s": 42.857,
    "l": 2.745
  },
  "oklch": {
    "l": 0.13695,
    "c": 0.01192,
    "h": 195.9
  },
  "luminance": 0.00265
}

Semantic roles & 50–950 ramp

primary

#040A0A

secondary

#452525

accent

#5555D3

background

#F4F4F4

surface

#E6E7E7

border

#C2C3C3

text

#000101

muted

#777777

Preview Lab

Preview with #040A0A

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

Preview Lab → · Contrast checker → · Palette generator →