#400C04#400C04

#400C04 is a very dark, moderate red. Relative luminance 0.014; OKLCH L 24.8% C 0.082 H 32.6°. Best body text is #FFFFFF at 16.50:1 contrast (WCAG AA passes).

Color values

HEX	#400C04
RGB	rgb(64, 12, 4)
HSL	hsl(8, 88%, 13%)
HSV	hsv(8, 94%, 25%)
CMYK	cmyk(0%, 81.2%, 93.8%, 74.9%)
CIE-LAB	lab(11.70, 24.54, 16.48)
CIE-LCH	lch(11.70, 29.56, 33.89°)
OKLab	oklab(24.82% 0.069 0.0442)
OKLCH	oklch(24.82% 0.082 32.6)
XYZ	xyz(2.2680, 1.3621, 0.2583)
Luminance	0.0136 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400C04 #043840

analogous

#40041A #400C04 #402A04

triadic

#400C04 #04400C #0C0440

tetradic

#400C04 #1A4004 #043840 #2A0440

square

#400C04 #1A4004 #043840 #2A0440

split-complementary

#400C04 #04402A #041A40

monochromatic

#1D0502 #1D0502 #400C04 #7A1708 #B3220B

Accessibility & contrast

On white

16.50

#400C04 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#400C04 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400C04

16.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400C04	#FFFFFF	#000000	##FFFFFF
##400C04	1.00	16.50	1.27	16.50
#FFFFFF	16.50	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C1803

Deuteranopia (green-blind)

#292302

Tritanopia (blue-blind)

#47000A

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #400c04;
/* rgb */ color: rgb(64, 12, 4);
/* oklch */ color: oklch(24.8% 0.082 32.6);

Tailwind

colors: {
  custom: {
    50: '#7a4f48',
    500: '#400c04',
    950: '#000000',
  },
}

SCSS

$custom: #400c04;
$custom-light: #7a4f48;
$custom-dark: #000000;

JSON

{
  "hex": "#400c04",
  "rgb": {
    "r": 64,
    "g": 12,
    "b": 4
  },
  "hsl": {
    "h": 8,
    "s": 88.235,
    "l": 13.333
  },
  "oklch": {
    "l": 0.2482,
    "c": 0.08193,
    "h": 32.6
  },
  "luminance": 0.01362
}

Semantic roles & 50–950 ramp

primary

#400C04

secondary

#1F7481

accent

#E2FE29

background

#F7F4F4

surface

#EEE7E6

border

#C9C3C2

text

#0A0200

muted

#7C7877

Preview Lab

Preview with #400C04

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

Preview Lab → · Contrast checker → · Palette generator →