#3F0A09#3F0A09

#3F0A09 is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.5% C 0.082 H 26.5°. Best body text is #FFFFFF at 16.68:1 contrast (WCAG AA passes).

Color values

HEX	#3F0A09
RGB	rgb(63, 10, 9)
HSL	hsl(1, 75%, 14%)
HSV	hsv(1, 86%, 25%)
CMYK	cmyk(0%, 84.1%, 85.7%, 75.3%)
CIE-LAB	lab(11.23, 25.28, 13.76)
CIE-LCH	lch(11.23, 28.79, 28.56°)
OKLab	oklab(24.45% 0.073 0.0364)
OKLCH	oklch(24.45% 0.082 26.5)
XYZ	xyz(2.2080, 1.2939, 0.3919)
Luminance	0.0129 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0A09 #093E3F

analogous

#3F0923 #3F0A09 #3F2509

triadic

#3F0A09 #093F0A #0A093F

tetradic

#3F0A09 #233F09 #093E3F #25093F

square

#3F0A09 #233F09 #093E3F #25093F

split-complementary

#3F0A09 #093F25 #09233F

monochromatic

#1B0404 #1B0404 #3F0A09 #751311 #AA1B18

Accessibility & contrast

On white

16.68

#3F0A09 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#3F0A09 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0A09

16.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0A09	#FFFFFF	#000000	##FFFFFF
##3F0A09	1.00	16.68	1.26	16.68
#FFFFFF	16.68	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A1708

Deuteranopia (green-blind)

#272207

Tritanopia (blue-blind)

#46000A

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #3f0a09;
/* rgb */ color: rgb(63, 10, 9);
/* oklch */ color: oklch(24.5% 0.082 26.5);

Tailwind

colors: {
  custom: {
    50: '#794e4a',
    500: '#3f0a09',
    950: '#000000',
  },
}

SCSS

$custom: #3f0a09;
$custom-light: #794e4a;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0a09",
  "rgb": {
    "r": 63,
    "g": 10,
    "b": 9
  },
  "hsl": {
    "h": 1.111,
    "s": 75,
    "l": 14.118
  },
  "oklch": {
    "l": 0.24451,
    "c": 0.08156,
    "h": 26.5
  },
  "luminance": 0.01294
}

Semantic roles & 50–950 ramp

primary

#3F0A09

secondary

#277B7D

accent

#EEF236

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #3F0A09

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

Preview Lab → · Contrast checker → · Palette generator →