#400C09#400C09

#400C09 is a very dark, moderate red. Relative luminance 0.014; OKLCH L 24.9% C 0.081 H 27.9°. Best body text is #FFFFFF at 16.48:1 contrast (WCAG AA passes).

Color values

HEX	#400C09
RGB	rgb(64, 12, 9)
HSL	hsl(3, 75%, 14%)
HSV	hsv(3, 86%, 25%)
CMYK	cmyk(0%, 81.2%, 85.9%, 74.9%)
CIE-LAB	lab(11.78, 24.80, 14.55)
CIE-LCH	lch(11.78, 28.75, 30.40°)
OKLab	oklab(24.9% 0.0713 0.0378)
OKLCH	oklch(24.9% 0.081 27.9)
XYZ	xyz(2.2954, 1.3730, 0.4025)
Luminance	0.0137 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400C09 #093D40

analogous

#400922 #400C09 #402809

triadic

#400C09 #09400C #0C0940

tetradic

#400C09 #224009 #093D40 #280940

square

#400C09 #224009 #093D40 #280940

split-complementary

#400C09 #094028 #092240

monochromatic

#1B0504 #1B0504 #400C09 #761611 #AB2018

Accessibility & contrast

On white

16.48

#400C09 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#400C09 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400C09

16.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400C09	#FFFFFF	#000000	##FFFFFF
##400C09	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)

#1B1808

Deuteranopia (green-blind)

#282307

Tritanopia (blue-blind)

#47000C

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #400c09;
/* rgb */ color: rgb(64, 12, 9);
/* oklch */ color: oklch(24.9% 0.081 27.9);

Tailwind

colors: {
  custom: {
    50: '#7a4f4a',
    500: '#400c09',
    950: '#000000',
  },
}

SCSS

$custom: #400c09;
$custom-light: #7a4f4a;
$custom-dark: #000000;

JSON

{
  "hex": "#400c09",
  "rgb": {
    "r": 64,
    "g": 12,
    "b": 9
  },
  "hsl": {
    "h": 3.273,
    "s": 75.342,
    "l": 14.314
  },
  "oklch": {
    "l": 0.24899,
    "c": 0.0807,
    "h": 27.9
  },
  "luminance": 0.01373
}

Semantic roles & 50–950 ramp

primary

#400C09

secondary

#27797E

accent

#E8F236

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #400C09

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

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