#3F0D11#3F0D11

#3F0D11 is a very dark, moderate red. Relative luminance 0.014; OKLCH L 25.0% C 0.077 H 20.4°. Best body text is #FFFFFF at 16.44:1 contrast (WCAG AA passes).

Color values

HEX	#3F0D11
RGB	rgb(63, 13, 17)
HSL	hsl(355, 66%, 15%)
HSV	hsv(355, 79%, 25%)
CMYK	cmyk(0%, 79.4%, 73%, 75.3%)
CIE-LAB	lab(11.86, 24.43, 10.77)
CIE-LCH	lch(11.86, 26.70, 23.78°)
OKLab	oklab(24.97% 0.0724 0.0269)
OKLCH	oklch(24.97% 0.077 20.4)
XYZ	xyz(2.2952, 1.3854, 0.6768)
Luminance	0.0138 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0D11 #0D3F3B

analogous

#3F0D2A #3F0D11 #3F220D

triadic

#3F0D11 #113F0D #0D113F

tetradic

#3F0D11 #2A3F0D #0D3F3B #220D3F

square

#3F0D11 #2A3F0D #0D3F3B #220D3F

split-complementary

#3F0D11 #0D3F22 #0D2A3F

monochromatic

#190507 #190507 #3F0D11 #72171F #A4222C

Accessibility & contrast

On white

16.44

#3F0D11 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#3F0D11 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0D11

16.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0D11	#FFFFFF	#000000	##FFFFFF
##3F0D11	1.00	16.44	1.28	16.44
#FFFFFF	16.44	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B1811

Deuteranopia (green-blind)

#272310

Tritanopia (blue-blind)

#46020F

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #3f0d11;
/* rgb */ color: rgb(63, 13, 17);
/* oklch */ color: oklch(25.0% 0.077 20.4);

Tailwind

colors: {
  custom: {
    50: '#78504f',
    500: '#3f0d11',
    950: '#000000',
  },
}

SCSS

$custom: #3f0d11;
$custom-light: #78504f;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0d11",
  "rgb": {
    "r": 63,
    "g": 13,
    "b": 17
  },
  "hsl": {
    "h": 355.2,
    "s": 65.789,
    "l": 14.902
  },
  "oklch": {
    "l": 0.24965,
    "c": 0.07719,
    "h": 20.4
  },
  "luminance": 0.01385
}

Semantic roles & 50–950 ramp

primary

#3F0D11

secondary

#2D7B74

accent

#E9DB3F

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #3F0D11

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

Preview Lab → · Contrast checker → · Palette generator →