#3F0F0B#3F0F0B

#3F0F0B is a dark, moderate red. Relative luminance 0.014; OKLCH L 25.1% C 0.076 H 28.4°. Best body text is #FFFFFF at 16.35:1 contrast (WCAG AA passes).

Color values

HEX	#3F0F0B
RGB	rgb(63, 15, 11)
HSL	hsl(5, 70%, 15%)
HSV	hsv(5, 83%, 25%)
CMYK	cmyk(0%, 76.2%, 82.5%, 75.3%)
CIE-LAB	lab(12.11, 23.07, 14.14)
CIE-LCH	lch(12.11, 27.06, 31.50°)
OKLab	oklab(25.12% 0.0665 0.036)
OKLCH	oklch(25.12% 0.076 28.4)
XYZ	xyz(2.2814, 1.4229, 0.4711)
Luminance	0.0142 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0F0B #0B3B3F

analogous

#3F0B21 #3F0F0B #3F290B

triadic

#3F0F0B #0B3F0F #0F0B3F

tetradic

#3F0F0B #213F0B #0B3B3F #290B3F

square

#3F0F0B #213F0B #0B3B3F #290B3F

split-complementary

#3F0F0B #0B3F29 #0B213F

monochromatic

#1A0605 #1A0605 #3F0F0B #731B14 #A7281D

Accessibility & contrast

On white

16.35

#3F0F0B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#3F0F0B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0F0B

16.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0F0B	#FFFFFF	#000000	##FFFFFF
##3F0F0B	1.00	16.35	1.28	16.35
#FFFFFF	16.35	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C190A

Deuteranopia (green-blind)

#282409

Tritanopia (blue-blind)

#46030E

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #3f0f0b;
/* rgb */ color: rgb(63, 15, 11);
/* oklch */ color: oklch(25.1% 0.076 28.4);

Tailwind

colors: {
  custom: {
    50: '#79504b',
    500: '#3f0f0b',
    950: '#000000',
  },
}

SCSS

$custom: #3f0f0b;
$custom-light: #79504b;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0f0b",
  "rgb": {
    "r": 63,
    "g": 15,
    "b": 11
  },
  "hsl": {
    "h": 4.615,
    "s": 70.27,
    "l": 14.51
  },
  "oklch": {
    "l": 0.25116,
    "c": 0.07566,
    "h": 28.4
  },
  "luminance": 0.01423
}

Semantic roles & 50–950 ramp

primary

#3F0F0B

secondary

#2A757C

accent

#DFED3B

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #3F0F0B

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

Preview Lab → · Contrast checker → · Palette generator →