#3F0A11#3F0A11

#3F0A11 is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.6% C 0.081 H 18.4°. Best body text is #FFFFFF at 16.63:1 contrast (WCAG AA passes).

Color values

HEX	#3F0A11
RGB	rgb(63, 10, 17)
HSL	hsl(352, 73%, 14%)
HSV	hsv(352, 84%, 25%)
CMYK	cmyk(0%, 84.1%, 73%, 75.3%)
CIE-LAB	lab(11.38, 25.77, 10.10)
CIE-LCH	lch(11.38, 27.68, 21.41°)
OKLab	oklab(24.61% 0.0766 0.0255)
OKLCH	oklch(24.61% 0.081 18.4)
XYZ	xyz(2.2599, 1.3146, 0.6650)
Luminance	0.0131 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0A11 #0A3F38

analogous

#3F0A2C #3F0A11 #3F1E0A

triadic

#3F0A11 #113F0A #0A113F

tetradic

#3F0A11 #2C3F0A #0A3F38 #1E0A3F

square

#3F0A11 #2C3F0A #0A3F38 #1E0A3F

split-complementary

#3F0A11 #0A3F1E #0A2C3F

monochromatic

#1A0407 #1A0407 #3F0A11 #74121F #A91B2E

Accessibility & contrast

On white

16.63

#3F0A11 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#3F0A11 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0A11

16.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0A11	#FFFFFF	#000000	##FFFFFF
##3F0A11	1.00	16.63	1.26	16.63
#FFFFFF	16.63	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#191711

Deuteranopia (green-blind)

#26220F

Tritanopia (blue-blind)

#46000D

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #3f0a11;
/* rgb */ color: rgb(63, 10, 17);
/* oklch */ color: oklch(24.6% 0.081 18.4);

Tailwind

colors: {
  custom: {
    50: '#794e4f',
    500: '#3f0a11',
    950: '#000000',
  },
}

SCSS

$custom: #3f0a11;
$custom-light: #794e4f;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0a11",
  "rgb": {
    "r": 63,
    "g": 10,
    "b": 17
  },
  "hsl": {
    "h": 352.075,
    "s": 72.603,
    "l": 14.314
  },
  "oklch": {
    "l": 0.24605,
    "c": 0.08073,
    "h": 18.4
  },
  "luminance": 0.01314
}

Semantic roles & 50–950 ramp

primary

#3F0A11

secondary

#297C71

accent

#EFD738

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #3F0A11

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

Preview Lab → · Contrast checker → · Palette generator →