#400D03#400D03

#400D03 is a very dark, moderate red. Relative luminance 0.014; OKLCH L 24.9% C 0.081 H 34.4°. Best body text is #FFFFFF at 16.45:1 contrast (WCAG AA passes).

Color values

HEX	#400D03
RGB	rgb(64, 13, 3)
HSL	hsl(10, 91%, 13%)
HSV	hsv(10, 95%, 25%)
CMYK	cmyk(0%, 79.7%, 95.3%, 74.9%)
CIE-LAB	lab(11.86, 24.03, 17.10)
CIE-LCH	lch(11.86, 29.49, 35.44°)
OKLab	oklab(24.93% 0.0671 0.0459)
OKLCH	oklch(24.93% 0.081 34.4)
XYZ	xyz(2.2750, 1.3848, 0.2336)
Luminance	0.0138 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400D03 #033640

analogous

#400317 #400D03 #402B03

triadic

#400D03 #03400D #0D0340

tetradic

#400D03 #174003 #033640 #2B0340

square

#400D03 #174003 #033640 #2B0340

split-complementary

#400D03 #03402B #031740

monochromatic

#1D0601 #1D0601 #400D03 #7A1906 #B52508

Accessibility & contrast

On white

16.45

#400D03 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#400D03 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400D03

16.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400D03	#FFFFFF	#000000	##FFFFFF
##400D03	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)

#1C1802

Deuteranopia (green-blind)

#292301

Tritanopia (blue-blind)

#47000B

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #400d03;
/* rgb */ color: rgb(64, 13, 3);
/* oklch */ color: oklch(24.9% 0.081 34.4);

Tailwind

colors: {
  custom: {
    50: '#7a4f48',
    500: '#400d03',
    950: '#000000',
  },
}

SCSS

$custom: #400d03;
$custom-light: #7a4f48;
$custom-dark: #000000;

JSON

{
  "hex": "#400d03",
  "rgb": {
    "r": 64,
    "g": 13,
    "b": 3
  },
  "hsl": {
    "h": 9.836,
    "s": 91.045,
    "l": 13.137
  },
  "oklch": {
    "l": 0.2493,
    "c": 0.08126,
    "h": 34.4
  },
  "luminance": 0.01384
}

Semantic roles & 50–950 ramp

primary

#400D03

secondary

#1D7182

accent

#DCFF29

background

#F7F4F4

surface

#EEE7E6

border

#C9C3C2

text

#0A0200

muted

#7C7877

Preview Lab

Preview with #400D03

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

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