#400B16#400B16

#400B16 is a dark, moderate red. Relative luminance 0.014; OKLCH L 25.1% C 0.081 H 13.5°. Best body text is #FFFFFF at 16.44:1 contrast (WCAG AA passes).

Color values

HEX	#400B16
RGB	rgb(64, 11, 22)
HSL	hsl(348, 71%, 15%)
HSV	hsv(348, 83%, 25%)
CMYK	cmyk(0%, 82.8%, 65.6%, 74.9%)
CIE-LAB	lab(11.87, 26.11, 7.58)
CIE-LCH	lch(11.87, 27.19, 16.19°)
OKLab	oklab(25.05% 0.0787 0.0189)
OKLCH	oklch(25.05% 0.081 13.5)
XYZ	xyz(2.3791, 1.3876, 0.9015)
Luminance	0.0139 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400B16 #0B4035

analogous

#400B31 #400B16 #401B0B

triadic

#400B16 #16400B #0B1640

tetradic

#400B16 #31400B #0B4035 #1B0B40

square

#400B16 #31400B #0B4035 #1B0B40

split-complementary

#400B16 #0B401B #0B3140

monochromatic

#1A0409 #1A0409 #400B16 #741428 #A81D3A

Accessibility & contrast

On white

16.44

#400B16 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#400B16 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400B16

16.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400B16	#FFFFFF	#000000	##FFFFFF
##400B16	1.00	16.44	1.28	16.44
#FFFFFF	16.44	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#191816

Deuteranopia (green-blind)

#272315

Tritanopia (blue-blind)

#470110

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #400b16;
/* rgb */ color: rgb(64, 11, 22);
/* oklch */ color: oklch(25.1% 0.081 13.5);

Tailwind

colors: {
  custom: {
    50: '#794f52',
    500: '#400b16',
    950: '#000000',
  },
}

SCSS

$custom: #400b16;
$custom-light: #794f52;
$custom-dark: #000000;

JSON

{
  "hex": "#400b16",
  "rgb": {
    "r": 64,
    "g": 11,
    "b": 22
  },
  "hsl": {
    "h": 347.547,
    "s": 70.667,
    "l": 14.706
  },
  "oklch": {
    "l": 0.25054,
    "c": 0.08089,
    "h": 13.5
  },
  "luminance": 0.01387
}

Semantic roles & 50–950 ramp

primary

#400B16

secondary

#2A7D6C

accent

#EDC83A

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0202

muted

#7C7878

Preview Lab

Preview with #400B16

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

Preview Lab → · Contrast checker → · Palette generator →