#400305#400305

#400305 is a very dark, moderate red. Relative luminance 0.012; OKLCH L 23.8% C 0.091 H 26.0°. Best body text is #FFFFFF at 17.03:1 contrast (WCAG AA passes).

Color values

HEX	#400305
RGB	rgb(64, 3, 5)
HSL	hsl(358, 91%, 13%)
HSV	hsv(358, 95%, 25%)
CMYK	cmyk(0%, 95.3%, 92.2%, 74.9%)
CIE-LAB	lab(10.31, 28.55, 14.13)
CIE-LCH	lch(10.31, 31.86, 26.34°)
OKLab	oklab(23.79% 0.0819 0.0399)
OKLCH	oklch(23.79% 0.091 26)
XYZ	xyz(2.1746, 1.1664, 0.2542)
Luminance	0.0117 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#400305 #03403E

analogous

#400323 #400305 #401F03

triadic

#400305 #054003 #030540

tetradic

#400305 #234003 #03403E #1F0340

square

#400305 #234003 #03403E #1F0340

split-complementary

#400305 #03401F #032340

monochromatic

#1D0102 #1D0102 #400305 #7A060A #B5080E

Accessibility & contrast

On white

17.03

#400305 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#400305 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #400305

17.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##400305	#FFFFFF	#000000	##FFFFFF
##400305	1.00	17.03	1.23	17.03
#FFFFFF	17.03	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#171304

Deuteranopia (green-blind)

#262103

Tritanopia (blue-blind)

#480004

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #400305;
/* rgb */ color: rgb(64, 3, 5);
/* oklch */ color: oklch(23.8% 0.091 26.0);

Tailwind

colors: {
  custom: {
    50: '#7b4b49',
    500: '#400305',
    950: '#000000',
  },
}

SCSS

$custom: #400305;
$custom-light: #7b4b49;
$custom-dark: #000000;

JSON

{
  "hex": "#400305",
  "rgb": {
    "r": 64,
    "g": 3,
    "b": 5
  },
  "hsl": {
    "h": 358.033,
    "s": 91.045,
    "l": 13.137
  },
  "oklch": {
    "l": 0.23787,
    "c": 0.09108,
    "h": 26
  },
  "luminance": 0.01166
}

Semantic roles & 50–950 ramp

primary

#400305

secondary

#1D827F

accent

#FFF829

background

#F7F4F4

surface

#EEE7E6

border

#C9C3C2

text

#0A0100

muted

#7C7777

Preview Lab

Preview with #400305

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

Preview Lab → · Contrast checker → · Palette generator →