#3B0505#3B0505

#3B0505 is a very dark, moderate red. Relative luminance 0.010; OKLCH L 22.9% C 0.083 H 26.9°. Best body text is #FFFFFF at 17.36:1 contrast (WCAG AA passes).

Color values

HEX	#3B0505
RGB	rgb(59, 5, 5)
HSL	hsl(0, 84%, 13%)
HSV	hsv(0, 92%, 23%)
CMYK	cmyk(0%, 91.5%, 91.5%, 76.9%)
CIE-LAB	lab(9.40, 25.88, 12.67)
CIE-LCH	lch(9.40, 28.81, 26.09°)
OKLab	oklab(22.9% 0.0742 0.0376)
OKLCH	oklch(22.9% 0.083 26.9)
XYZ	xyz(1.8855, 1.0496, 0.2469)
Luminance	0.0105 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B0505 #053B3B

analogous

#3B0520 #3B0505 #3B2005

triadic

#3B0505 #053B05 #05053B

tetradic

#3B0505 #203B05 #053B3B #20053B

square

#3B0505 #203B05 #053B3B #20053B

split-complementary

#3B0505 #053B20 #05203B

monochromatic

#1C0202 #1C0202 #3B0505 #730A0A #AC0F0F

Accessibility & contrast

On white

17.36

#3B0505 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#3B0505 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B0505

17.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B0505	#FFFFFF	#000000	##FFFFFF
##3B0505	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)

#161304

Deuteranopia (green-blind)

#231F03

Tritanopia (blue-blind)

#420006

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #3b0505;
/* rgb */ color: rgb(59, 5, 5);
/* oklch */ color: oklch(22.9% 0.083 26.9);

Tailwind

colors: {
  custom: {
    50: '#764b49',
    500: '#3b0505',
    950: '#000000',
  },
}

SCSS

$custom: #3b0505;
$custom-light: #764b49;
$custom-dark: #000000;

JSON

{
  "hex": "#3b0505",
  "rgb": {
    "r": 59,
    "g": 5,
    "b": 5
  },
  "hsl": {
    "h": 0,
    "s": 84.375,
    "l": 12.549
  },
  "oklch": {
    "l": 0.22895,
    "c": 0.08317,
    "h": 26.9
  },
  "luminance": 0.01049
}

Semantic roles & 50–950 ramp

primary

#3B0505

secondary

#207C7C

accent

#FBFB2D

background

#F7F4F4

surface

#EEE7E6

border

#C9C3C2

text

#090100

muted

#7B7777

Preview Lab

Preview with #3B0505

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

Preview Lab → · Contrast checker → · Palette generator →