#40110B#40110B

#40110B is a dark, moderate red. Relative luminance 0.015; OKLCH L 25.6% C 0.075 H 30.2°. Best body text is #FFFFFF at 16.12:1 contrast (WCAG AA passes).

Color values

HEX	#40110B
RGB	rgb(64, 17, 11)
HSL	hsl(7, 71%, 15%)
HSV	hsv(7, 83%, 25%)
CMYK	cmyk(0%, 73.4%, 82.8%, 74.9%)
CIE-LAB	lab(12.71, 22.46, 14.98)
CIE-LCH	lch(12.71, 27.00, 33.71°)
OKLab	oklab(25.6% 0.0645 0.0376)
OKLCH	oklch(25.6% 0.075 30.2)
XYZ	xyz(2.3755, 1.5154, 0.4840)
Luminance	0.0152 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40110B #0B3A40

analogous

#400B20 #40110B #402B0B

triadic

#40110B #0B4011 #110B40

tetradic

#40110B #20400B #0B3A40 #2B0B40

square

#40110B #20400B #0B3A40 #2B0B40

split-complementary

#40110B #0B402B #0B2040

monochromatic

#1A0704 #1A0704 #40110B #741F14 #A82D1D

Accessibility & contrast

On white

16.12

#40110B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#40110B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40110B

16.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40110B	#FFFFFF	#000000	##FFFFFF
##40110B	1.00	16.12	1.30	16.12
#FFFFFF	16.12	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E1A0A

Deuteranopia (green-blind)

#2A2509

Tritanopia (blue-blind)

#470610

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #40110b;
/* rgb */ color: rgb(64, 17, 11);
/* oklch */ color: oklch(25.6% 0.075 30.2);

Tailwind

colors: {
  custom: {
    50: '#79524b',
    500: '#40110b',
    950: '#000000',
  },
}

SCSS

$custom: #40110b;
$custom-light: #79524b;
$custom-dark: #000000;

JSON

{
  "hex": "#40110b",
  "rgb": {
    "r": 64,
    "g": 17,
    "b": 11
  },
  "hsl": {
    "h": 6.792,
    "s": 70.667,
    "l": 14.706
  },
  "oklch": {
    "l": 0.25604,
    "c": 0.07462,
    "h": 30.2
  },
  "luminance": 0.01515
}

Semantic roles & 50–950 ramp

primary

#40110B

secondary

#2A737D

accent

#D9ED3A

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #40110B

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

Preview Lab → · Contrast checker → · Palette generator →