#400C03#400C03

#400C03 is a very dark, moderate red. Relative luminance 0.014; OKLCH L 24.8% C 0.082 H 33.6°. Best body text is #FFFFFF at 16.51:1 contrast (WCAG AA passes).

Color values

HEX	#400C03
RGB	rgb(64, 12, 3)
HSL	hsl(9, 91%, 13%)
HSV	hsv(9, 95%, 25%)
CMYK	cmyk(0%, 81.2%, 95.3%, 74.9%)
CIE-LAB	lab(11.69, 24.49, 16.87)
CIE-LCH	lch(11.69, 29.73, 34.56°)
OKLab	oklab(24.8% 0.0685 0.0456)
OKLCH	oklch(24.8% 0.082 33.6)
XYZ	xyz(2.2625, 1.3599, 0.2295)
Luminance	0.0136 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400C03 #033740

analogous

#400318 #400C03 #402A03

triadic

#400C03 #03400C #0C0340

tetradic

#400C03 #184003 #033740 #2A0340

square

#400C03 #184003 #033740 #2A0340

split-complementary

#400C03 #03402A #031840

monochromatic

#1D0501 #1D0501 #400C03 #7A1706 #B52208

Accessibility & contrast

On white

16.51

#400C03 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#400C03 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400C03

16.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400C03	#FFFFFF	#000000	##FFFFFF
##400C03	1.00	16.51	1.27	16.51
#FFFFFF	16.51	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C1802

Deuteranopia (green-blind)

#292301

Tritanopia (blue-blind)

#48000A

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #400c03;
/* rgb */ color: rgb(64, 12, 3);
/* oklch */ color: oklch(24.8% 0.082 33.6);

Tailwind

colors: {
  custom: {
    50: '#7a4f48',
    500: '#400c03',
    950: '#000000',
  },
}

SCSS

$custom: #400c03;
$custom-light: #7a4f48;
$custom-dark: #000000;

JSON

{
  "hex": "#400c03",
  "rgb": {
    "r": 64,
    "g": 12,
    "b": 3
  },
  "hsl": {
    "h": 8.852,
    "s": 91.045,
    "l": 13.137
  },
  "oklch": {
    "l": 0.24804,
    "c": 0.08225,
    "h": 33.6
  },
  "luminance": 0.0136
}

Semantic roles & 50–950 ramp

primary

#400C03

secondary

#1D7382

accent

#DFFF29

background

#F7F4F4

surface

#EEE7E6

border

#C9C3C2

text

#0A0200

muted

#7C7877

Preview Lab

Preview with #400C03

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

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