#400A09#400A09

#400A09 is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.7% C 0.083 H 26.6°. Best body text is #FFFFFF at 16.60:1 contrast (WCAG AA passes).

Color values

HEX	#400A09
RGB	rgb(64, 10, 9)
HSL	hsl(1, 75%, 14%)
HSV	hsv(1, 86%, 25%)
CMYK	cmyk(0%, 84.4%, 85.9%, 74.9%)
CIE-LAB	lab(11.46, 25.66, 14.12)
CIE-LCH	lch(11.46, 29.29, 28.81°)
OKLab	oklab(24.67% 0.074 0.037)
OKLCH	oklch(24.67% 0.083 26.6)
XYZ	xyz(2.2725, 1.3271, 0.3949)
Luminance	0.0133 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400A09 #093F40

analogous

#400924 #400A09 #402609

triadic

#400A09 #09400A #0A0940

tetradic

#400A09 #244009 #093F40 #260940

square

#400A09 #244009 #093F40 #260940

split-complementary

#400A09 #094026 #092440

monochromatic

#1B0404 #1B0404 #400A09 #761211 #AB1B18

Accessibility & contrast

On white

16.60

#400A09 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#400A09 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400A09

16.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400A09	#FFFFFF	#000000	##FFFFFF
##400A09	1.00	16.60	1.27	16.60
#FFFFFF	16.60	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A1708

Deuteranopia (green-blind)

#282307

Tritanopia (blue-blind)

#47000A

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #400a09;
/* rgb */ color: rgb(64, 10, 9);
/* oklch */ color: oklch(24.7% 0.083 26.6);

Tailwind

colors: {
  custom: {
    50: '#7a4e4a',
    500: '#400a09',
    950: '#000000',
  },
}

SCSS

$custom: #400a09;
$custom-light: #7a4e4a;
$custom-dark: #000000;

JSON

{
  "hex": "#400a09",
  "rgb": {
    "r": 64,
    "g": 10,
    "b": 9
  },
  "hsl": {
    "h": 1.091,
    "s": 75.342,
    "l": 14.314
  },
  "oklch": {
    "l": 0.24665,
    "c": 0.08277,
    "h": 26.6
  },
  "luminance": 0.01327
}

Semantic roles & 50–950 ramp

primary

#400A09

secondary

#277C7E

accent

#EFF236

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #400A09

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

Preview Lab → · Contrast checker → · Palette generator →