#400C0D#400C0D

#400C0D is a very dark, moderate red. Relative luminance 0.014; OKLCH L 25.0% C 0.080 H 24.2°. Best body text is #FFFFFF at 16.45:1 contrast (WCAG AA passes).

Color values

HEX	#400C0D
RGB	rgb(64, 12, 13)
HSL	hsl(359, 68%, 15%)
HSV	hsv(359, 81%, 25%)
CMYK	cmyk(0%, 81.2%, 79.7%, 74.9%)
CIE-LAB	lab(11.84, 25.02, 12.90)
CIE-LCH	lch(11.84, 28.14, 27.27°)
OKLab	oklab(24.97% 0.073 0.0328)
OKLCH	oklch(24.97% 0.08 24.2)
XYZ	xyz(2.3187, 1.3823, 0.5254)
Luminance	0.0138 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400C0D #0C403F

analogous

#400C27 #400C0D #40250C

triadic

#400C0D #0D400C #0C0D40

tetradic

#400C0D #27400C #0C403F #250C40

square

#400C0D #27400C #0C403F #250C40

split-complementary

#400C0D #0C4025 #0C2740

monochromatic

#1A0505 #1A0505 #400C0D #741617 #A71F22

Accessibility & contrast

On white

16.45

#400C0D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#400C0D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400C0D

16.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400C0D	#FFFFFF	#000000	##FFFFFF
##400C0D	1.00	16.45	1.28	16.45
#FFFFFF	16.45	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B180D

Deuteranopia (green-blind)

#28230B

Tritanopia (blue-blind)

#47000D

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #400c0d;
/* rgb */ color: rgb(64, 12, 13);
/* oklch */ color: oklch(25.0% 0.080 24.2);

Tailwind

colors: {
  custom: {
    50: '#7a4f4c',
    500: '#400c0d',
    950: '#000000',
  },
}

SCSS

$custom: #400c0d;
$custom-light: #7a4f4c;
$custom-dark: #000000;

JSON

{
  "hex": "#400c0d",
  "rgb": {
    "r": 64,
    "g": 12,
    "b": 13
  },
  "hsl": {
    "h": 358.846,
    "s": 68.421,
    "l": 14.902
  },
  "oklch": {
    "l": 0.24966,
    "c": 0.08004,
    "h": 24.2
  },
  "luminance": 0.01382
}

Semantic roles & 50–950 ramp

primary

#400C0D

secondary

#2C7C7B

accent

#EBE83D

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #400C0D

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

Preview Lab → · Contrast checker → · Palette generator →