#400B13#400B13

#400B13 is a very dark, moderate red. Relative luminance 0.014; OKLCH L 25.0% C 0.081 H 17.0°. Best body text is #FFFFFF at 16.47:1 contrast (WCAG AA passes).

Color values

HEX	#400B13
RGB	rgb(64, 11, 19)
HSL	hsl(351, 71%, 15%)
HSV	hsv(351, 83%, 25%)
CMYK	cmyk(0%, 82.8%, 70.3%, 74.9%)
CIE-LAB	lab(11.80, 25.86, 9.51)
CIE-LCH	lch(11.80, 27.56, 20.18°)
OKLab	oklab(24.98% 0.0772 0.0236)
OKLCH	oklch(24.98% 0.081 17)
XYZ	xyz(2.3518, 1.3767, 0.7579)
Luminance	0.0138 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400B13 #0B4038

analogous

#400B2E #400B13 #401D0B

triadic

#400B13 #13400B #0B1340

tetradic

#400B13 #2E400B #0B4038 #1D0B40

square

#400B13 #2E400B #0B4038 #1D0B40

split-complementary

#400B13 #0B401D #0B2E40

monochromatic

#1A0408 #1A0408 #400B13 #741423 #A81D32

Accessibility & contrast

On white

16.47

#400B13 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#400B13 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400B13

16.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400B13	#FFFFFF	#000000	##FFFFFF
##400B13	1.00	16.47	1.28	16.47
#FFFFFF	16.47	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#191813

Deuteranopia (green-blind)

#272312

Tritanopia (blue-blind)

#47000E

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #400b13;
/* rgb */ color: rgb(64, 11, 19);
/* oklch */ color: oklch(25.0% 0.081 17.0);

Tailwind

colors: {
  custom: {
    50: '#794f50',
    500: '#400b13',
    950: '#000000',
  },
}

SCSS

$custom: #400b13;
$custom-light: #794f50;
$custom-dark: #000000;

JSON

{
  "hex": "#400b13",
  "rgb": {
    "r": 64,
    "g": 11,
    "b": 19
  },
  "hsl": {
    "h": 350.943,
    "s": 70.667,
    "l": 14.706
  },
  "oklch": {
    "l": 0.24976,
    "c": 0.08076,
    "h": 17
  },
  "luminance": 0.01376
}

Semantic roles & 50–950 ramp

primary

#400B13

secondary

#2A7D70

accent

#EDD23A

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0202

muted

#7C7878

Preview Lab

Preview with #400B13

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

Preview Lab → · Contrast checker → · Palette generator →