#3F0811#3F0811

#3F0811 is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.4% C 0.083 H 17.2°. Best body text is #FFFFFF at 16.74:1 contrast (WCAG AA passes).

Color values

HEX	#3F0811
RGB	rgb(63, 8, 17)
HSL	hsl(350, 77%, 14%)
HSV	hsv(350, 87%, 25%)
CMYK	cmyk(0%, 87.3%, 73%, 75.3%)
CIE-LAB	lab(11.07, 26.62, 9.68)
CIE-LCH	lch(11.07, 28.33, 19.99°)
OKLab	oklab(24.38% 0.0793 0.0246)
OKLCH	oklch(24.38% 0.083 17.2)
XYZ	xyz(2.2381, 1.2712, 0.6577)
Luminance	0.0127 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0811 #083F36

analogous

#3F082D #3F0811 #3F1B08

triadic

#3F0811 #113F08 #08113F

tetradic

#3F0811 #2D3F08 #083F36 #1B083F

square

#3F0811 #2D3F08 #083F36 #1B083F

split-complementary

#3F0811 #083F1B #082D3F

monochromatic

#1B0307 #1B0307 #3F0811 #750F20 #AC162E

Accessibility & contrast

On white

16.74

#3F0811 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#3F0811 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0811

16.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0811	#FFFFFF	#000000	##FFFFFF
##3F0811	1.00	16.74	1.25	16.74
#FFFFFF	16.74	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#181611

Deuteranopia (green-blind)

#26220F

Tritanopia (blue-blind)

#46000C

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #3f0811;
/* rgb */ color: rgb(63, 8, 17);
/* oklch */ color: oklch(24.4% 0.083 17.2);

Tailwind

colors: {
  custom: {
    50: '#794d4f',
    500: '#3f0811',
    950: '#000000',
  },
}

SCSS

$custom: #3f0811;
$custom-light: #794d4f;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0811",
  "rgb": {
    "r": 63,
    "g": 8,
    "b": 17
  },
  "hsl": {
    "h": 350.182,
    "s": 77.465,
    "l": 13.922
  },
  "oklch": {
    "l": 0.24379,
    "c": 0.08306,
    "h": 17.2
  },
  "luminance": 0.01271
}

Semantic roles & 50–950 ramp

primary

#3F0811

secondary

#257E6F

accent

#F4D534

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0101

muted

#7C7777

Preview Lab

Preview with #3F0811

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

Preview Lab → · Contrast checker → · Palette generator →