#3F110B#3F110B

#3F110B is a dark, moderate red. Relative luminance 0.015; OKLCH L 25.4% C 0.073 H 30.3°. Best body text is #FFFFFF at 16.20:1 contrast (WCAG AA passes).

Color values

HEX	#3F110B
RGB	rgb(63, 17, 11)
HSL	hsl(7, 70%, 15%)
HSV	hsv(7, 83%, 25%)
CMYK	cmyk(0%, 73%, 82.5%, 75.3%)
CIE-LAB	lab(12.49, 22.03, 14.66)
CIE-LCH	lch(12.49, 26.47, 33.64°)
OKLab	oklab(25.41% 0.0633 0.037)
OKLCH	oklch(25.41% 0.073 30.3)
XYZ	xyz(2.3110, 1.4821, 0.4809)
Luminance	0.0148 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F110B #0B393F

analogous

#3F0B1F #3F110B #3F2B0B

triadic

#3F110B #0B3F11 #110B3F

tetradic

#3F110B #1F3F0B #0B393F #2B0B3F

square

#3F110B #1F3F0B #0B393F #2B0B3F

split-complementary

#3F110B #0B3F2B #0B1F3F

monochromatic

#1A0705 #1A0705 #3F110B #731F14 #A72D1D

Accessibility & contrast

On white

16.20

#3F110B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#3F110B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F110B

16.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F110B	#FFFFFF	#000000	##FFFFFF
##3F110B	1.00	16.20	1.30	16.20
#FFFFFF	16.20	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E1A0A

Deuteranopia (green-blind)

#29240A

Tritanopia (blue-blind)

#460610

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #3f110b;
/* rgb */ color: rgb(63, 17, 11);
/* oklch */ color: oklch(25.4% 0.073 30.3);

Tailwind

colors: {
  custom: {
    50: '#78524b',
    500: '#3f110b',
    950: '#000000',
  },
}

SCSS

$custom: #3f110b;
$custom-light: #78524b;
$custom-dark: #000000;

JSON

{
  "hex": "#3f110b",
  "rgb": {
    "r": 63,
    "g": 17,
    "b": 11
  },
  "hsl": {
    "h": 6.923,
    "s": 70.27,
    "l": 14.51
  },
  "oklch": {
    "l": 0.25405,
    "c": 0.0733,
    "h": 30.3
  },
  "luminance": 0.01482
}

Semantic roles & 50–950 ramp

primary

#3F110B

secondary

#2A727C

accent

#D8ED3B

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #3F110B

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

Preview Lab → · Contrast checker → · Palette generator →