#3F0C0C#3F0C0C

#3F0C0C is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.7% C 0.079 H 25.0°. Best body text is #FFFFFF at 16.55:1 contrast (WCAG AA passes).

Color values

HEX	#3F0C0C
RGB	rgb(63, 12, 12)
HSL	hsl(0, 68%, 15%)
HSV	hsv(0, 81%, 25%)
CMYK	cmyk(0%, 81%, 81%, 75.3%)
CIE-LAB	lab(11.60, 24.57, 13.00)
CIE-LCH	lch(11.60, 27.79, 27.88°)
OKLab	oklab(24.74% 0.0715 0.0334)
OKLCH	oklch(24.74% 0.079 25)
XYZ	xyz(2.2480, 1.3466, 0.4893)
Luminance	0.0135 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0C0C #0C3F3F

analogous

#3F0C26 #3F0C0C #3F260C

triadic

#3F0C0C #0C3F0C #0C0C3F

tetradic

#3F0C0C #263F0C #0C3F3F #260C3F

square

#3F0C0C #263F0C #0C3F3F #260C3F

split-complementary

#3F0C0C #0C3F26 #0C263F

monochromatic

#1A0505 #1A0505 #3F0C0C #721616 #A62020

Accessibility & contrast

On white

16.55

#3F0C0C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#3F0C0C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0C0C

16.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0C0C	#FFFFFF	#000000	##FFFFFF
##3F0C0C	1.00	16.55	1.27	16.55
#FFFFFF	16.55	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B180B

Deuteranopia (green-blind)

#27230A

Tritanopia (blue-blind)

#46000D

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #3f0c0c;
/* rgb */ color: rgb(63, 12, 12);
/* oklch */ color: oklch(24.7% 0.079 25.0);

Tailwind

colors: {
  custom: {
    50: '#794f4c',
    500: '#3f0c0c',
    950: '#000000',
  },
}

SCSS

$custom: #3f0c0c;
$custom-light: #794f4c;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0c0c",
  "rgb": {
    "r": 63,
    "g": 12,
    "b": 12
  },
  "hsl": {
    "h": 0,
    "s": 68,
    "l": 14.706
  },
  "oklch": {
    "l": 0.24738,
    "c": 0.07894,
    "h": 25
  },
  "luminance": 0.01346
}

Semantic roles & 50–950 ramp

primary

#3F0C0C

secondary

#2C7B7B

accent

#EBEB3D

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #3F0C0C

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

Preview Lab → · Contrast checker → · Palette generator →