#3B0305#3B0305

#3B0305 is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.6% C 0.086 H 25.5°. Best body text is #FFFFFF at 17.48:1 contrast (WCAG AA passes).

Color values

HEX	#3B0305
RGB	rgb(59, 3, 5)
HSL	hsl(358, 90%, 12%)
HSV	hsv(358, 95%, 23%)
CMYK	cmyk(0%, 94.9%, 91.5%, 76.9%)
CIE-LAB	lab(9.04, 26.89, 12.16)
CIE-LCH	lch(9.04, 29.51, 24.34°)
OKLab	oklab(22.63% 0.0774 0.0368)
OKLCH	oklch(22.63% 0.086 25.5)
XYZ	xyz(1.8638, 1.0062, 0.2396)
Luminance	0.0101 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B0305 #033B39

analogous

#3B0321 #3B0305 #3B1D03

triadic

#3B0305 #053B03 #03053B

tetradic

#3B0305 #213B03 #033B39 #1D033B

square

#3B0305 #213B03 #033B39 #1D033B

split-complementary

#3B0305 #033B1D #03213B

monochromatic

#1D0102 #1D0102 #3B0305 #75060A #AF090F

Accessibility & contrast

On white

17.48

#3B0305 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#3B0305 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B0305

17.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B0305	#FFFFFF	#000000	##FFFFFF
##3B0305	1.00	17.48	1.20	17.48
#FFFFFF	17.48	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#151205

Deuteranopia (green-blind)

#231E03

Tritanopia (blue-blind)

#420004

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #3b0305;
/* rgb */ color: rgb(59, 3, 5);
/* oklch */ color: oklch(22.6% 0.086 25.5);

Tailwind

colors: {
  custom: {
    50: '#764a49',
    500: '#3b0305',
    950: '#000000',
  },
}

SCSS

$custom: #3b0305;
$custom-light: #764a49;
$custom-dark: #000000;

JSON

{
  "hex": "#3b0305",
  "rgb": {
    "r": 59,
    "g": 3,
    "b": 5
  },
  "hsl": {
    "h": 357.857,
    "s": 90.323,
    "l": 12.157
  },
  "oklch": {
    "l": 0.22632,
    "c": 0.08568,
    "h": 25.5
  },
  "luminance": 0.01006
}

Semantic roles & 50–950 ramp

primary

#3B0305

secondary

#1C7E7A

accent

#FFF729

background

#F7F4F4

surface

#EEE7E6

border

#C9C3C2

text

#090100

muted

#7B7777

Preview Lab

Preview with #3B0305

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

Preview Lab → · Contrast checker → · Palette generator →