#3B0909#3B0909

#3B0909 is a very dark, moderate red. Relative luminance 0.011; OKLCH L 23.5% C 0.078 H 25.5°. Best body text is #FFFFFF at 17.09:1 contrast (WCAG AA passes).

Color values

HEX	#3B0909
RGB	rgb(59, 9, 9)
HSL	hsl(0, 74%, 13%)
HSV	hsv(0, 85%, 23%)
CMYK	cmyk(0%, 84.7%, 84.7%, 76.9%)
CIE-LAB	lab(10.15, 24.20, 12.11)
CIE-LCH	lch(10.15, 27.06, 26.58°)
OKLab	oklab(23.47% 0.0702 0.0335)
OKLCH	oklch(23.47% 0.078 25.5)
XYZ	xyz(1.9509, 1.1452, 0.3767)
Luminance	0.0115 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B0909 #093B3B

analogous

#3B0922 #3B0909 #3B2209

triadic

#3B0909 #093B09 #09093B

tetradic

#3B0909 #223B09 #093B3B #22093B

square

#3B0909 #223B09 #093B3B #22093B

split-complementary

#3B0909 #093B22 #09223B

monochromatic

#1B0404 #1B0404 #3B0909 #701111 #A51919

Accessibility & contrast

On white

17.09

#3B0909 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#3B0909 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B0909

17.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B0909	#FFFFFF	#000000	##FFFFFF
##3B0909	1.00	17.09	1.23	17.09
#FFFFFF	17.09	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#181508

Deuteranopia (green-blind)

#242007

Tritanopia (blue-blind)

#42000A

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #3b0909;
/* rgb */ color: rgb(59, 9, 9);
/* oklch */ color: oklch(23.5% 0.078 25.5);

Tailwind

colors: {
  custom: {
    50: '#764d4a',
    500: '#3b0909',
    950: '#000000',
  },
}

SCSS

$custom: #3b0909;
$custom-light: #764d4a;
$custom-dark: #000000;

JSON

{
  "hex": "#3b0909",
  "rgb": {
    "r": 59,
    "g": 9,
    "b": 9
  },
  "hsl": {
    "h": 0,
    "s": 73.529,
    "l": 13.333
  },
  "oklch": {
    "l": 0.23474,
    "c": 0.07775,
    "h": 25.5
  },
  "luminance": 0.01145
}

Semantic roles & 50–950 ramp

primary

#3B0909

secondary

#277979

accent

#F0F038

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#090101

muted

#7B7777

Preview Lab

Preview with #3B0909

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

Preview Lab → · Contrast checker → · Palette generator →