#400504#400504

#400504 is a very dark, moderate red. Relative luminance 0.012; OKLCH L 24.0% C 0.089 H 28.1°. Best body text is #FFFFFF at 16.92:1 contrast (WCAG AA passes).

Color values

HEX	#400504
RGB	rgb(64, 5, 4)
HSL	hsl(1, 88%, 13%)
HSV	hsv(1, 94%, 25%)
CMYK	cmyk(0%, 92.2%, 93.8%, 74.9%)
CIE-LAB	lab(10.61, 27.58, 14.97)
CIE-LCH	lch(10.61, 31.38, 28.50°)
OKLab	oklab(24.01% 0.0785 0.042)
OKLCH	oklch(24.01% 0.089 28.1)
XYZ	xyz(2.1908, 1.2077, 0.2326)
Luminance	0.0121 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400504 #043F40

analogous

#400421 #400504 #402304

triadic

#400504 #044005 #050440

tetradic

#400504 #214004 #043F40 #230440

square

#400504 #214004 #043F40 #230440

split-complementary

#400504 #044023 #042140

monochromatic

#1D0202 #1D0202 #400504 #7A0A08 #B30E0B

Accessibility & contrast

On white

16.92

#400504 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#400504 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400504

16.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400504	#FFFFFF	#000000	##FFFFFF
##400504	1.00	16.92	1.24	16.92
#FFFFFF	16.92	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#181403

Deuteranopia (green-blind)

#272102

Tritanopia (blue-blind)

#480005

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #400504;
/* rgb */ color: rgb(64, 5, 4);
/* oklch */ color: oklch(24.0% 0.089 28.1);

Tailwind

colors: {
  custom: {
    50: '#7a4c48',
    500: '#400504',
    950: '#000000',
  },
}

SCSS

$custom: #400504;
$custom-light: #7a4c48;
$custom-dark: #000000;

JSON

{
  "hex": "#400504",
  "rgb": {
    "r": 64,
    "g": 5,
    "b": 4
  },
  "hsl": {
    "h": 1,
    "s": 88.235,
    "l": 13.333
  },
  "oklch": {
    "l": 0.24008,
    "c": 0.08901,
    "h": 28.1
  },
  "luminance": 0.01207
}

Semantic roles & 50–950 ramp

primary

#400504

secondary

#1F8081

accent

#FBFE29

background

#F7F4F4

surface

#EEE7E6

border

#C9C3C2

text

#0A0100

muted

#7C7777

Preview Lab

Preview with #400504

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

Preview Lab → · Contrast checker → · Palette generator →