#3A0404#3A0404

#3A0404 is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.5% C 0.083 H 27.2°. Best body text is #FFFFFF at 17.51:1 contrast (WCAG AA passes).

Color values

HEX	#3A0404
RGB	rgb(58, 4, 4)
HSL	hsl(0, 87%, 12%)
HSV	hsv(0, 93%, 23%)
CMYK	cmyk(0%, 93.1%, 93.1%, 77.3%)
CIE-LAB	lab(8.95, 25.98, 12.41)
CIE-LCH	lch(8.95, 28.79, 25.53°)
OKLab	oklab(22.52% 0.0742 0.0382)
OKLCH	oklch(22.52% 0.083 27.2)
XYZ	xyz(1.8105, 0.9954, 0.2117)
Luminance	0.0100 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A0404 #043A3A

analogous

#3A041F #3A0404 #3A1F04

triadic

#3A0404 #043A04 #04043A

tetradic

#3A0404 #1F3A04 #043A3A #1F043A

square

#3A0404 #1F3A04 #043A3A #1F043A

split-complementary

#3A0404 #043A1F #041F3A

monochromatic

#1D0202 #1D0202 #3A0404 #730808 #AD0C0C

Accessibility & contrast

On white

17.51

#3A0404 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#3A0404 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A0404

17.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A0404	#FFFFFF	#000000	##FFFFFF
##3A0404	1.00	17.51	1.20	17.51
#FFFFFF	17.51	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#151203

Deuteranopia (green-blind)

#221E02

Tritanopia (blue-blind)

#410005

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #3a0404;
/* rgb */ color: rgb(58, 4, 4);
/* oklch */ color: oklch(22.5% 0.083 27.2);

Tailwind

colors: {
  custom: {
    50: '#754a48',
    500: '#3a0404',
    950: '#000000',
  },
}

SCSS

$custom: #3a0404;
$custom-light: #754a48;
$custom-dark: #000000;

JSON

{
  "hex": "#3a0404",
  "rgb": {
    "r": 58,
    "g": 4,
    "b": 4
  },
  "hsl": {
    "h": 0,
    "s": 87.097,
    "l": 12.157
  },
  "oklch": {
    "l": 0.22516,
    "c": 0.08348,
    "h": 27.2
  },
  "luminance": 0.00995
}

Semantic roles & 50–950 ramp

primary

#3A0404

secondary

#1E7C7C

accent

#FDFD2B

background

#F7F4F4

surface

#EDE7E6

border

#C8C3C2

text

#090100

muted

#7B7777

Preview Lab

Preview with #3A0404

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

Preview Lab → · Contrast checker → · Palette generator →