#400B11#400B11

#400B11 is a very dark, moderate red. Relative luminance 0.014; OKLCH L 24.9% C 0.081 H 19.3°. Best body text is #FFFFFF at 16.48:1 contrast (WCAG AA passes).

Color values

HEX	#400B11
RGB	rgb(64, 11, 17)
HSL	hsl(353, 71%, 15%)
HSV	hsv(353, 83%, 25%)
CMYK	cmyk(0%, 82.8%, 73.4%, 74.9%)
CIE-LAB	lab(11.76, 25.72, 10.66)
CIE-LCH	lch(11.76, 27.84, 22.52°)
OKLab	oklab(24.93% 0.0763 0.0267)
OKLCH	oklch(24.93% 0.081 19.3)
XYZ	xyz(2.3354, 1.3701, 0.6717)
Luminance	0.0137 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400B11 #0B403A

analogous

#400B2B #400B11 #40200B

triadic

#400B11 #11400B #0B1140

tetradic

#400B11 #2B400B #0B403A #200B40

square

#400B11 #2B400B #0B403A #200B40

split-complementary

#400B11 #0B4020 #0B2B40

monochromatic

#1A0407 #1A0407 #400B11 #74141F #A81D2D

Accessibility & contrast

On white

16.48

#400B11 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#400B11 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400B11

16.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400B11	#FFFFFF	#000000	##FFFFFF
##400B11	1.00	16.48	1.27	16.48
#FFFFFF	16.48	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A1811

Deuteranopia (green-blind)

#27230F

Tritanopia (blue-blind)

#47000E

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #400b11;
/* rgb */ color: rgb(64, 11, 17);
/* oklch */ color: oklch(24.9% 0.081 19.3);

Tailwind

colors: {
  custom: {
    50: '#794f4f',
    500: '#400b11',
    950: '#000000',
  },
}

SCSS

$custom: #400b11;
$custom-light: #794f4f;
$custom-dark: #000000;

JSON

{
  "hex": "#400b11",
  "rgb": {
    "r": 64,
    "g": 11,
    "b": 17
  },
  "hsl": {
    "h": 353.208,
    "s": 70.667,
    "l": 14.706
  },
  "oklch": {
    "l": 0.24929,
    "c": 0.08081,
    "h": 19.3
  },
  "luminance": 0.0137
}

Semantic roles & 50–950 ramp

primary

#400B11

secondary

#2A7D73

accent

#EDD93A

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #400B11

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

Preview Lab → · Contrast checker → · Palette generator →