#400B18#400B18

#400B18 is a dark, moderate red. Relative luminance 0.014; OKLCH L 25.1% C 0.081 H 11.1°. Best body text is #FFFFFF at 16.42:1 contrast (WCAG AA passes).

Color values

HEX	#400B18
RGB	rgb(64, 11, 24)
HSL	hsl(345, 71%, 15%)
HSV	hsv(345, 83%, 25%)
CMYK	cmyk(0%, 82.8%, 62.5%, 74.9%)
CIE-LAB	lab(11.93, 26.29, 6.17)
CIE-LCH	lch(11.93, 27.00, 13.21°)
OKLab	oklab(25.11% 0.0796 0.0156)
OKLCH	oklch(25.11% 0.081 11.1)
XYZ	xyz(2.3991, 1.3956, 1.0070)
Luminance	0.0140 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400B18 #0B4033

analogous

#400B33 #400B18 #40190B

triadic

#400B18 #18400B #0B1840

tetradic

#400B18 #33400B #0B4033 #190B40

square

#400B18 #33400B #0B4033 #190B40

split-complementary

#400B18 #0B4019 #0B3340

monochromatic

#1A040A #1A040A #400B18 #74142C #A81D3F

Accessibility & contrast

On white

16.42

#400B18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#400B18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400B18

16.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400B18	#FFFFFF	#000000	##FFFFFF
##400B18	1.00	16.42	1.28	16.42
#FFFFFF	16.42	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#191818

Deuteranopia (green-blind)

#262317

Tritanopia (blue-blind)

#470110

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #400b18;
/* rgb */ color: rgb(64, 11, 24);
/* oklch */ color: oklch(25.1% 0.081 11.1);

Tailwind

colors: {
  custom: {
    50: '#794f54',
    500: '#400b18',
    950: '#000000',
  },
}

SCSS

$custom: #400b18;
$custom-light: #794f54;
$custom-dark: #000000;

JSON

{
  "hex": "#400b18",
  "rgb": {
    "r": 64,
    "g": 11,
    "b": 24
  },
  "hsl": {
    "h": 345.283,
    "s": 70.667,
    "l": 14.706
  },
  "oklch": {
    "l": 0.25112,
    "c": 0.08111,
    "h": 11.1
  },
  "luminance": 0.01395
}

Semantic roles & 50–950 ramp

primary

#400B18

secondary

#2A7D68

accent

#EDC23A

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0202

muted

#7C7878

Preview Lab

Preview with #400B18

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

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