#3A0403#3A0403

#3A0403 is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.5% C 0.084 H 28.4°. Best body text is #FFFFFF at 17.52:1 contrast (WCAG AA passes).

Color values

HEX	#3A0403
RGB	rgb(58, 4, 3)
HSL	hsl(1, 90%, 12%)
HSV	hsv(1, 95%, 23%)
CMYK	cmyk(0%, 93.1%, 94.8%, 77.3%)
CIE-LAB	lab(8.93, 25.92, 12.79)
CIE-LCH	lch(8.93, 28.90, 26.26°)
OKLab	oklab(22.5% 0.0736 0.0398)
OKLCH	oklch(22.5% 0.084 28.4)
XYZ	xyz(1.8050, 0.9932, 0.1828)
Luminance	0.0099 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A0403 #03393A

analogous

#3A031E #3A0403 #3A2003

triadic

#3A0403 #033A04 #04033A

tetradic

#3A0403 #1E3A03 #03393A #20033A

square

#3A0403 #1E3A03 #03393A #20033A

split-complementary

#3A0403 #033A20 #031E3A

monochromatic

#1D0202 #1D0202 #3A0403 #740806 #AE0C09

Accessibility & contrast

On white

17.52

#3A0403 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#3A0403 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A0403

17.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A0403	#FFFFFF	#000000	##FFFFFF
##3A0403	1.00	17.52	1.20	17.52
#FFFFFF	17.52	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#151202

Deuteranopia (green-blind)

#221E01

Tritanopia (blue-blind)

#410004

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #3a0403;
/* rgb */ color: rgb(58, 4, 3);
/* oklch */ color: oklch(22.5% 0.084 28.4);

Tailwind

colors: {
  custom: {
    50: '#754a48',
    500: '#3a0403',
    950: '#000000',
  },
}

SCSS

$custom: #3a0403;
$custom-light: #754a48;
$custom-dark: #000000;

JSON

{
  "hex": "#3a0403",
  "rgb": {
    "r": 58,
    "g": 4,
    "b": 3
  },
  "hsl": {
    "h": 1.091,
    "s": 90.164,
    "l": 11.961
  },
  "oklch": {
    "l": 0.22497,
    "c": 0.08372,
    "h": 28.4
  },
  "luminance": 0.00993
}

Semantic roles & 50–950 ramp

primary

#3A0403

secondary

#1C7B7D

accent

#FBFF29

background

#F7F4F4

surface

#EDE7E6

border

#C8C3C2

text

#090100

muted

#7B7777

Preview Lab

Preview with #3A0403

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

Preview Lab → · Contrast checker → · Palette generator →