#3F0B09#3F0B09

#3F0B09 is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.6% C 0.081 H 27.2°. Best body text is #FFFFFF at 16.62:1 contrast (WCAG AA passes).

Color values

HEX	#3F0B09
RGB	rgb(63, 11, 9)
HSL	hsl(2, 75%, 14%)
HSV	hsv(2, 86%, 25%)
CMYK	cmyk(0%, 82.5%, 85.7%, 75.3%)
CIE-LAB	lab(11.39, 24.85, 13.98)
CIE-LCH	lch(11.39, 28.51, 29.35°)
OKLab	oklab(24.57% 0.0716 0.0368)
OKLCH	oklch(24.57% 0.081 27.2)
XYZ	xyz(2.2191, 1.3162, 0.3956)
Luminance	0.0132 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0B09 #093D3F

analogous

#3F0922 #3F0B09 #3F2609

triadic

#3F0B09 #093F0B #0B093F

tetradic

#3F0B09 #223F09 #093D3F #26093F

square

#3F0B09 #223F09 #093D3F #26093F

split-complementary

#3F0B09 #093F26 #09223F

monochromatic

#1B0504 #1B0504 #3F0B09 #751411 #AA1E18

Accessibility & contrast

On white

16.62

#3F0B09 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#3F0B09 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0B09

16.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0B09	#FFFFFF	#000000	##FFFFFF
##3F0B09	1.00	16.62	1.26	16.62
#FFFFFF	16.62	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A1708

Deuteranopia (green-blind)

#272207

Tritanopia (blue-blind)

#46000B

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #3f0b09;
/* rgb */ color: rgb(63, 11, 9);
/* oklch */ color: oklch(24.6% 0.081 27.2);

Tailwind

colors: {
  custom: {
    50: '#794e4a',
    500: '#3f0b09',
    950: '#000000',
  },
}

SCSS

$custom: #3f0b09;
$custom-light: #794e4a;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0b09",
  "rgb": {
    "r": 63,
    "g": 11,
    "b": 9
  },
  "hsl": {
    "h": 2.222,
    "s": 75,
    "l": 14.118
  },
  "oklch": {
    "l": 0.24567,
    "c": 0.08053,
    "h": 27.2
  },
  "luminance": 0.01316
}

Semantic roles & 50–950 ramp

primary

#3F0B09

secondary

#277A7D

accent

#EBF236

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #3F0B09

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

Preview Lab → · Contrast checker → · Palette generator →