#3F0F09#3F0F09

#3F0F09 is a dark, moderate red. Relative luminance 0.014; OKLCH L 25.1% C 0.076 H 30.3°. Best body text is #FFFFFF at 16.36:1 contrast (WCAG AA passes).

Color values

HEX	#3F0F09
RGB	rgb(63, 15, 9)
HSL	hsl(7, 75%, 14%)
HSV	hsv(7, 86%, 25%)
CMYK	cmyk(0%, 76.2%, 85.7%, 75.3%)
CIE-LAB	lab(12.08, 22.96, 14.93)
CIE-LCH	lch(12.08, 27.39, 33.03°)
OKLab	oklab(25.09% 0.0657 0.0384)
OKLCH	oklch(25.09% 0.076 30.3)
XYZ	xyz(2.2703, 1.4185, 0.4126)
Luminance	0.0142 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0F09 #09393F

analogous

#3F091E #3F0F09 #3F2A09

triadic

#3F0F09 #093F0F #0F093F

tetradic

#3F0F09 #1E3F09 #09393F #2A093F

square

#3F0F09 #1E3F09 #09393F #2A093F

split-complementary

#3F0F09 #093F2A #091E3F

monochromatic

#1B0604 #1B0604 #3F0F09 #751C11 #AA2918

Accessibility & contrast

On white

16.36

#3F0F09 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#3F0F09 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0F09

16.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0F09	#FFFFFF	#000000	##FFFFFF
##3F0F09	1.00	16.36	1.28	16.36
#FFFFFF	16.36	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D1908

Deuteranopia (green-blind)

#292407

Tritanopia (blue-blind)

#46030E

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #3f0f09;
/* rgb */ color: rgb(63, 15, 9);
/* oklch */ color: oklch(25.1% 0.076 30.3);

Tailwind

colors: {
  custom: {
    50: '#79504a',
    500: '#3f0f09',
    950: '#000000',
  },
}

SCSS

$custom: #3f0f09;
$custom-light: #79504a;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0f09",
  "rgb": {
    "r": 63,
    "g": 15,
    "b": 9
  },
  "hsl": {
    "h": 6.667,
    "s": 75,
    "l": 14.118
  },
  "oklch": {
    "l": 0.25085,
    "c": 0.0761,
    "h": 30.3
  },
  "luminance": 0.01418
}

Semantic roles & 50–950 ramp

primary

#3F0F09

secondary

#27737D

accent

#DDF236

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #3F0F09

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

Preview Lab → · Contrast checker → · Palette generator →