#3F0B04#3F0B04

#3F0B04 is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.5% C 0.082 H 32.0°. Best body text is #FFFFFF at 16.65:1 contrast (WCAG AA passes).

Color values

HEX	#3F0B04
RGB	rgb(63, 11, 4)
HSL	hsl(7, 88%, 13%)
HSV	hsv(7, 94%, 25%)
CMYK	cmyk(0%, 82.5%, 93.7%, 75.3%)
CIE-LAB	lab(11.31, 24.59, 15.91)
CIE-LCH	lch(11.31, 29.29, 32.89°)
OKLab	oklab(24.49% 0.0693 0.0433)
OKLCH	oklch(24.49% 0.082 32)
XYZ	xyz(2.1918, 1.3052, 0.2514)
Luminance	0.0131 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0B04 #04383F

analogous

#3F041A #3F0B04 #3F2804

triadic

#3F0B04 #043F0B #0B043F

tetradic

#3F0B04 #1A3F04 #04383F #28043F

square

#3F0B04 #1A3F04 #04383F #28043F

split-complementary

#3F0B04 #043F28 #041A3F

monochromatic

#1D0502 #1D0502 #3F0B04 #791508 #B21F0B

Accessibility & contrast

On white

16.65

#3F0B04 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#3F0B04 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0B04

16.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0B04	#FFFFFF	#000000	##FFFFFF
##3F0B04	1.00	16.65	1.26	16.65
#FFFFFF	16.65	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B1703

Deuteranopia (green-blind)

#282202

Tritanopia (blue-blind)

#46000A

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #3f0b04;
/* rgb */ color: rgb(63, 11, 4);
/* oklch */ color: oklch(24.5% 0.082 32.0);

Tailwind

colors: {
  custom: {
    50: '#794e48',
    500: '#3f0b04',
    950: '#000000',
  },
}

SCSS

$custom: #3f0b04;
$custom-light: #794e48;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0b04",
  "rgb": {
    "r": 63,
    "g": 11,
    "b": 4
  },
  "hsl": {
    "h": 7.119,
    "s": 88.06,
    "l": 13.137
  },
  "oklch": {
    "l": 0.24486,
    "c": 0.08172,
    "h": 32
  },
  "luminance": 0.01305
}

Semantic roles & 50–950 ramp

primary

#3F0B04

secondary

#1E7580

accent

#E5FE2A

background

#F7F4F4

surface

#EEE7E6

border

#C9C3C2

text

#0A0200

muted

#7C7877

Preview Lab

Preview with #3F0B04

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

Preview Lab → · Contrast checker → · Palette generator →