#3F0D09#3F0D09

#3F0D09 is a very dark, moderate red. Relative luminance 0.014; OKLCH L 24.8% C 0.078 H 28.6°. Best body text is #FFFFFF at 16.50:1 contrast (WCAG AA passes).

Color values

HEX	#3F0D09
RGB	rgb(63, 13, 9)
HSL	hsl(4, 75%, 14%)
HSV	hsv(4, 86%, 25%)
CMYK	cmyk(0%, 79.4%, 85.7%, 75.3%)
CIE-LAB	lab(11.72, 23.94, 14.43)
CIE-LCH	lch(11.72, 27.95, 31.09°)
OKLab	oklab(24.82% 0.0688 0.0376)
OKLCH	oklch(24.82% 0.078 28.6)
XYZ	xyz(2.2434, 1.3647, 0.4037)
Luminance	0.0136 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0D09 #093B3F

analogous

#3F0920 #3F0D09 #3F2809

triadic

#3F0D09 #093F0D #0D093F

tetradic

#3F0D09 #203F09 #093B3F #28093F

square

#3F0D09 #203F09 #093B3F #28093F

split-complementary

#3F0D09 #093F28 #09203F

monochromatic

#1B0604 #1B0604 #3F0D09 #751811 #AA2318

Accessibility & contrast

On white

16.50

#3F0D09 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#3F0D09 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0D09

16.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0D09	#FFFFFF	#000000	##FFFFFF
##3F0D09	1.00	16.50	1.27	16.50
#FFFFFF	16.50	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B1808

Deuteranopia (green-blind)

#282307

Tritanopia (blue-blind)

#46010C

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #3f0d09;
/* rgb */ color: rgb(63, 13, 9);
/* oklch */ color: oklch(24.8% 0.078 28.6);

Tailwind

colors: {
  custom: {
    50: '#794f4a',
    500: '#3f0d09',
    950: '#000000',
  },
}

SCSS

$custom: #3f0d09;
$custom-light: #794f4a;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0d09",
  "rgb": {
    "r": 63,
    "g": 13,
    "b": 9
  },
  "hsl": {
    "h": 4.444,
    "s": 75,
    "l": 14.118
  },
  "oklch": {
    "l": 0.24816,
    "c": 0.07836,
    "h": 28.6
  },
  "luminance": 0.01364
}

Semantic roles & 50–950 ramp

primary

#3F0D09

secondary

#27777D

accent

#E4F236

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #3F0D09

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

Preview Lab → · Contrast checker → · Palette generator →