#400A0E#400A0E

#400A0E is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.8% C 0.082 H 21.9°. Best body text is #FFFFFF at 16.56:1 contrast (WCAG AA passes).

Color values

HEX	#400A0E
RGB	rgb(64, 10, 14)
HSL	hsl(356, 73%, 15%)
HSV	hsv(356, 84%, 25%)
CMYK	cmyk(0%, 84.4%, 78.1%, 74.9%)
CIE-LAB	lab(11.55, 25.94, 12.00)
CIE-LCH	lch(11.55, 28.58, 24.83°)
OKLab	oklab(24.75% 0.0762 0.0306)
OKLCH	oklch(24.75% 0.082 21.9)
XYZ	xyz(2.3024, 1.3391, 0.5526)
Luminance	0.0134 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400A0E #0A403C

analogous

#400A29 #400A0E #40210A

triadic

#400A0E #0E400A #0A0E40

tetradic

#400A0E #29400A #0A403C #210A40

square

#400A0E #29400A #0A403C #210A40

split-complementary

#400A0E #0A4021 #0A2940

monochromatic

#1A0406 #1A0406 #400A0E #75121A #AA1B25

Accessibility & contrast

On white

16.56

#400A0E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#400A0E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400A0E

16.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400A0E	#FFFFFF	#000000	##FFFFFF
##400A0E	1.00	16.56	1.27	16.56
#FFFFFF	16.56	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A170E

Deuteranopia (green-blind)

#27230C

Tritanopia (blue-blind)

#47000C

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #400a0e;
/* rgb */ color: rgb(64, 10, 14);
/* oklch */ color: oklch(24.8% 0.082 21.9);

Tailwind

colors: {
  custom: {
    50: '#7a4e4d',
    500: '#400a0e',
    950: '#000000',
  },
}

SCSS

$custom: #400a0e;
$custom-light: #7a4e4d;
$custom-dark: #000000;

JSON

{
  "hex": "#400a0e",
  "rgb": {
    "r": 64,
    "g": 10,
    "b": 14
  },
  "hsl": {
    "h": 355.556,
    "s": 72.973,
    "l": 14.51
  },
  "oklch": {
    "l": 0.24753,
    "c": 0.08213,
    "h": 21.9
  },
  "luminance": 0.01339
}

Semantic roles & 50–950 ramp

primary

#400A0E

secondary

#297D77

accent

#F0E238

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #400A0E

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

Preview Lab → · Contrast checker → · Palette generator →