#400B05#400B05

#400B05 is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.7% C 0.083 H 31.0°. Best body text is #FFFFFF at 16.56:1 contrast (WCAG AA passes).

Color values

HEX	#400B05
RGB	rgb(64, 11, 5)
HSL	hsl(6, 86%, 14%)
HSV	hsv(6, 92%, 25%)
CMYK	cmyk(0%, 82.8%, 92.2%, 74.9%)
CIE-LAB	lab(11.56, 25.04, 15.87)
CIE-LCH	lch(11.56, 29.64, 32.38°)
OKLab	oklab(24.72% 0.0709 0.0425)
OKLCH	oklch(24.72% 0.083 31)
XYZ	xyz(2.2617, 1.3406, 0.2832)
Luminance	0.0134 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400B05 #053A40

analogous

#40051C #400B05 #402805

triadic

#400B05 #05400B #0B0540

tetradic

#400B05 #1C4005 #053A40 #280540

square

#400B05 #1C4005 #053A40 #280540

split-complementary

#400B05 #054028 #051C40

monochromatic

#1C0502 #1C0502 #400B05 #791509 #B21F0E

Accessibility & contrast

On white

16.56

#400B05 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#400B05 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400B05

16.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400B05	#FFFFFF	#000000	##FFFFFF
##400B05	1.00	16.56	1.27	16.56
#FFFFFF	16.56	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B1704

Deuteranopia (green-blind)

#282303

Tritanopia (blue-blind)

#47000A

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #400b05;
/* rgb */ color: rgb(64, 11, 5);
/* oklch */ color: oklch(24.7% 0.083 31.0);

Tailwind

colors: {
  custom: {
    50: '#7a4f49',
    500: '#400b05',
    950: '#000000',
  },
}

SCSS

$custom: #400b05;
$custom-light: #7a4f49;
$custom-dark: #000000;

JSON

{
  "hex": "#400b05",
  "rgb": {
    "r": 64,
    "g": 11,
    "b": 5
  },
  "hsl": {
    "h": 6.102,
    "s": 85.507,
    "l": 13.529
  },
  "oklch": {
    "l": 0.24715,
    "c": 0.08264,
    "h": 31
  },
  "luminance": 0.0134
}

Semantic roles & 50–950 ramp

primary

#400B05

secondary

#207781

accent

#E7FC2C

background

#F7F4F4

surface

#EEE7E6

border

#C9C3C2

text

#0A0200

muted

#7C7877

Preview Lab

Preview with #400B05

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

Preview Lab → · Contrast checker → · Palette generator →