#400A0F#400A0F

#400A0F is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.8% C 0.082 H 20.8°. Best body text is #FFFFFF at 16.56:1 contrast (WCAG AA passes).

Color values

HEX	#400A0F
RGB	rgb(64, 10, 15)
HSL	hsl(354, 73%, 15%)
HSV	hsv(354, 84%, 25%)
CMYK	cmyk(0%, 84.4%, 76.6%, 74.9%)
CIE-LAB	lab(11.57, 26.00, 11.51)
CIE-LCH	lch(11.57, 28.44, 23.88°)
OKLab	oklab(24.77% 0.0767 0.0292)
OKLCH	oklch(24.77% 0.082 20.8)
XYZ	xyz(2.3094, 1.3419, 0.5893)
Luminance	0.0134 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400A0F #0A403B

analogous

#400A2A #400A0F #40200A

triadic

#400A0F #0F400A #0A0F40

tetradic

#400A0F #2A400A #0A403B #200A40

square

#400A0F #2A400A #0A403B #200A40

split-complementary

#400A0F #0A4020 #0A2A40

monochromatic

#1A0406 #1A0406 #400A0F #75121B #AA1B28

Accessibility & contrast

On white

16.56

#400A0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#400A0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400A0F

16.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400A0F	#FFFFFF	#000000	##FFFFFF
##400A0F	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)

#1A170F

Deuteranopia (green-blind)

#27230D

Tritanopia (blue-blind)

#47000C

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #400a0f;
/* rgb */ color: rgb(64, 10, 15);
/* oklch */ color: oklch(24.8% 0.082 20.8);

Tailwind

colors: {
  custom: {
    50: '#7a4e4d',
    500: '#400a0f',
    950: '#000000',
  },
}

SCSS

$custom: #400a0f;
$custom-light: #7a4e4d;
$custom-dark: #000000;

JSON

{
  "hex": "#400a0f",
  "rgb": {
    "r": 64,
    "g": 10,
    "b": 15
  },
  "hsl": {
    "h": 354.444,
    "s": 72.973,
    "l": 14.51
  },
  "oklch": {
    "l": 0.24773,
    "c": 0.08205,
    "h": 20.8
  },
  "luminance": 0.01342
}

Semantic roles & 50–950 ramp

primary

#400A0F

secondary

#297D75

accent

#F0DF38

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #400A0F

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

Preview Lab → · Contrast checker → · Palette generator →