#400B17#400B17

#400B17 is a dark, moderate red. Relative luminance 0.014; OKLCH L 25.1% C 0.081 H 12.3°. Best body text is #FFFFFF at 16.43:1 contrast (WCAG AA passes).

Color values

HEX	#400B17
RGB	rgb(64, 11, 23)
HSL	hsl(346, 71%, 15%)
HSV	hsv(346, 83%, 25%)
CMYK	cmyk(0%, 82.8%, 64.1%, 74.9%)
CIE-LAB	lab(11.90, 26.20, 6.88)
CIE-LCH	lch(11.90, 27.09, 14.72°)
OKLab	oklab(25.08% 0.0791 0.0172)
OKLCH	oklch(25.08% 0.081 12.3)
XYZ	xyz(2.3889, 1.3915, 0.9532)
Luminance	0.0139 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400B17 #0B4034

analogous

#400B32 #400B17 #401A0B

triadic

#400B17 #17400B #0B1740

tetradic

#400B17 #32400B #0B4034 #1A0B40

square

#400B17 #32400B #0B4034 #1A0B40

split-complementary

#400B17 #0B401A #0B3240

monochromatic

#1A0409 #1A0409 #400B17 #74142A #A81D3D

Accessibility & contrast

On white

16.43

#400B17 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#400B17 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400B17

16.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400B17	#FFFFFF	#000000	##FFFFFF
##400B17	1.00	16.43	1.28	16.43
#FFFFFF	16.43	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#191817

Deuteranopia (green-blind)

#262316

Tritanopia (blue-blind)

#470110

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #400b17;
/* rgb */ color: rgb(64, 11, 23);
/* oklch */ color: oklch(25.1% 0.081 12.3);

Tailwind

colors: {
  custom: {
    50: '#794f53',
    500: '#400b17',
    950: '#000000',
  },
}

SCSS

$custom: #400b17;
$custom-light: #794f53;
$custom-dark: #000000;

JSON

{
  "hex": "#400b17",
  "rgb": {
    "r": 64,
    "g": 11,
    "b": 23
  },
  "hsl": {
    "h": 346.415,
    "s": 70.667,
    "l": 14.706
  },
  "oklch": {
    "l": 0.25082,
    "c": 0.08098,
    "h": 12.3
  },
  "luminance": 0.01391
}

Semantic roles & 50–950 ramp

primary

#400B17

secondary

#2A7D6A

accent

#EDC53A

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0202

muted

#7C7878

Preview Lab

Preview with #400B17

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

Preview Lab → · Contrast checker → · Palette generator →