#400B0E#400B0E

#400B0E is a very dark, moderate red. Relative luminance 0.014; OKLCH L 24.9% C 0.081 H 22.5°. Best body text is #FFFFFF at 16.51:1 contrast (WCAG AA passes).

Color values

HEX	#400B0E
RGB	rgb(64, 11, 14)
HSL	hsl(357, 71%, 15%)
HSV	hsv(357, 83%, 25%)
CMYK	cmyk(0%, 82.8%, 78.1%, 74.9%)
CIE-LAB	lab(11.70, 25.51, 12.21)
CIE-LCH	lch(11.70, 28.29, 25.58°)
OKLab	oklab(24.87% 0.0749 0.031)
OKLCH	oklch(24.87% 0.081 22.5)
XYZ	xyz(2.3135, 1.3614, 0.5563)
Luminance	0.0136 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400B0E #0B403D

analogous

#400B29 #400B0E #40230B

triadic

#400B0E #0E400B #0B0E40

tetradic

#400B0E #29400B #0B403D #230B40

square

#400B0E #29400B #0B403D #230B40

split-complementary

#400B0E #0B4023 #0B2940

monochromatic

#1A0406 #1A0406 #400B0E #741419 #A81D25

Accessibility & contrast

On white

16.51

#400B0E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#400B0E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400B0E

16.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400B0E	#FFFFFF	#000000	##FFFFFF
##400B0E	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)

#1A180E

Deuteranopia (green-blind)

#27230C

Tritanopia (blue-blind)

#47000D

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #400b0e;
/* rgb */ color: rgb(64, 11, 14);
/* oklch */ color: oklch(24.9% 0.081 22.5);

Tailwind

colors: {
  custom: {
    50: '#7a4f4d',
    500: '#400b0e',
    950: '#000000',
  },
}

SCSS

$custom: #400b0e;
$custom-light: #7a4f4d;
$custom-dark: #000000;

JSON

{
  "hex": "#400b0e",
  "rgb": {
    "r": 64,
    "g": 11,
    "b": 14
  },
  "hsl": {
    "h": 356.604,
    "s": 70.667,
    "l": 14.706
  },
  "oklch": {
    "l": 0.24866,
    "c": 0.08104,
    "h": 22.5
  },
  "luminance": 0.01361
}

Semantic roles & 50–950 ramp

primary

#400B0E

secondary

#2A7D78

accent

#EDE33A

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #400B0E

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

Preview Lab → · Contrast checker → · Palette generator →