#400509#400509

#400509 is a very dark, moderate red. Relative luminance 0.012; OKLCH L 24.1% C 0.088 H 23.5°. Best body text is #FFFFFF at 16.89:1 contrast (WCAG AA passes).

Color values

HEX	#400509
RGB	rgb(64, 5, 9)
HSL	hsl(356, 86%, 14%)
HSV	hsv(356, 92%, 25%)
CMYK	cmyk(0%, 92.2%, 85.9%, 74.9%)
CIE-LAB	lab(10.69, 27.83, 13.05)
CIE-LCH	lch(10.69, 30.73, 25.12°)
OKLab	oklab(24.09% 0.0809 0.0352)
OKLCH	oklch(24.09% 0.088 23.5)
XYZ	xyz(2.2182, 1.2186, 0.3768)
Luminance	0.0122 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400509 #05403C

analogous

#400526 #400509 #401E05

triadic

#400509 #094005 #050940

tetradic

#400509 #264005 #05403C #1E0540

square

#400509 #264005 #05403C #1E0540

split-complementary

#400509 #05401E #052640

monochromatic

#1C0204 #1C0204 #400509 #790911 #B20E19

Accessibility & contrast

On white

16.89

#400509 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#400509 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400509

16.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400509	#FFFFFF	#000000	##FFFFFF
##400509	1.00	16.89	1.24	16.89
#FFFFFF	16.89	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#171509

Deuteranopia (green-blind)

#262107

Tritanopia (blue-blind)

#470007

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #400509;
/* rgb */ color: rgb(64, 5, 9);
/* oklch */ color: oklch(24.1% 0.088 23.5);

Tailwind

colors: {
  custom: {
    50: '#7a4c4a',
    500: '#400509',
    950: '#000000',
  },
}

SCSS

$custom: #400509;
$custom-light: #7a4c4a;
$custom-dark: #000000;

JSON

{
  "hex": "#400509",
  "rgb": {
    "r": 64,
    "g": 5,
    "b": 9
  },
  "hsl": {
    "h": 355.932,
    "s": 85.507,
    "l": 13.529
  },
  "oklch": {
    "l": 0.24093,
    "c": 0.0882,
    "h": 23.5
  },
  "luminance": 0.01218
}

Semantic roles & 50–950 ramp

primary

#400509

secondary

#20817A

accent

#FCEE2C

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0101

muted

#7C7777

Preview Lab

Preview with #400509

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

Preview Lab → · Contrast checker → · Palette generator →