#3B0504#3B0504

#3B0504 is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.9% C 0.083 H 28.0°. Best body text is #FFFFFF at 17.36:1 contrast (WCAG AA passes).

Color values

HEX	#3B0504
RGB	rgb(59, 5, 4)
HSL	hsl(1, 87%, 12%)
HSV	hsv(1, 93%, 23%)
CMYK	cmyk(0%, 91.5%, 93.2%, 76.9%)
CIE-LAB	lab(9.38, 25.83, 13.05)
CIE-LCH	lch(9.38, 28.94, 26.82°)
OKLab	oklab(22.88% 0.0736 0.0392)
OKLCH	oklch(22.88% 0.083 28)
XYZ	xyz(1.8801, 1.0474, 0.2180)
Luminance	0.0105 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B0504 #043A3B

analogous

#3B041F #3B0504 #3B2104

triadic

#3B0504 #043B05 #05043B

tetradic

#3B0504 #1F3B04 #043A3B #21043B

square

#3B0504 #1F3B04 #043A3B #21043B

split-complementary

#3B0504 #043B21 #041F3B

monochromatic

#1D0202 #1D0202 #3B0504 #740A08 #AE0F0C

Accessibility & contrast

On white

17.36

#3B0504 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#3B0504 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B0504

17.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B0504	#FFFFFF	#000000	##FFFFFF
##3B0504	1.00	17.36	1.21	17.36
#FFFFFF	17.36	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#161303

Deuteranopia (green-blind)

#231E02

Tritanopia (blue-blind)

#420005

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #3b0504;
/* rgb */ color: rgb(59, 5, 4);
/* oklch */ color: oklch(22.9% 0.083 28.0);

Tailwind

colors: {
  custom: {
    50: '#764b48',
    500: '#3b0504',
    950: '#000000',
  },
}

SCSS

$custom: #3b0504;
$custom-light: #764b48;
$custom-dark: #000000;

JSON

{
  "hex": "#3b0504",
  "rgb": {
    "r": 59,
    "g": 5,
    "b": 4
  },
  "hsl": {
    "h": 1.091,
    "s": 87.302,
    "l": 12.353
  },
  "oklch": {
    "l": 0.22877,
    "c": 0.08338,
    "h": 28
  },
  "luminance": 0.01047
}

Semantic roles & 50–950 ramp

primary

#3B0504

secondary

#1E7B7D

accent

#FAFD2A

background

#F7F4F4

surface

#EEE7E6

border

#C9C3C2

text

#090100

muted

#7B7777

Preview Lab

Preview with #3B0504

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

Preview Lab → · Contrast checker → · Palette generator →