#400B09#400B09

#400B09 is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.8% C 0.082 H 27.2°. Best body text is #FFFFFF at 16.54:1 contrast (WCAG AA passes).

Color values

HEX	#400B09
RGB	rgb(64, 11, 9)
HSL	hsl(2, 75%, 14%)
HSV	hsv(2, 86%, 25%)
CMYK	cmyk(0%, 82.8%, 85.9%, 74.9%)
CIE-LAB	lab(11.62, 25.24, 14.33)
CIE-LCH	lch(11.62, 29.02, 29.58°)
OKLab	oklab(24.78% 0.0727 0.0374)
OKLCH	oklch(24.78% 0.082 27.2)
XYZ	xyz(2.2836, 1.3494, 0.3986)
Luminance	0.0135 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400B09 #093E40

analogous

#400923 #400B09 #402709

triadic

#400B09 #09400B #0B0940

tetradic

#400B09 #234009 #093E40 #270940

square

#400B09 #234009 #093E40 #270940

split-complementary

#400B09 #094027 #092340

monochromatic

#1B0504 #1B0504 #400B09 #761411 #AB1D18

Accessibility & contrast

On white

16.54

#400B09 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#400B09 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400B09

16.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400B09	#FFFFFF	#000000	##FFFFFF
##400B09	1.00	16.54	1.27	16.54
#FFFFFF	16.54	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B1708

Deuteranopia (green-blind)

#282307

Tritanopia (blue-blind)

#47000B

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #400b09;
/* rgb */ color: rgb(64, 11, 9);
/* oklch */ color: oklch(24.8% 0.082 27.2);

Tailwind

colors: {
  custom: {
    50: '#7a4f4a',
    500: '#400b09',
    950: '#000000',
  },
}

SCSS

$custom: #400b09;
$custom-light: #7a4f4a;
$custom-dark: #000000;

JSON

{
  "hex": "#400b09",
  "rgb": {
    "r": 64,
    "g": 11,
    "b": 9
  },
  "hsl": {
    "h": 2.182,
    "s": 75.342,
    "l": 14.314
  },
  "oklch": {
    "l": 0.24779,
    "c": 0.08175,
    "h": 27.2
  },
  "luminance": 0.01349
}

Semantic roles & 50–950 ramp

primary

#400B09

secondary

#277B7E

accent

#EBF236

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #400B09

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

Preview Lab → · Contrast checker → · Palette generator →