#3F0A12#3F0A12

#3F0A12 is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.6% C 0.081 H 17.3°. Best body text is #FFFFFF at 16.62:1 contrast (WCAG AA passes).

Color values

HEX	#3F0A12
RGB	rgb(63, 10, 18)
HSL	hsl(351, 73%, 14%)
HSV	hsv(351, 84%, 25%)
CMYK	cmyk(0%, 84.1%, 71.4%, 75.3%)
CIE-LAB	lab(11.40, 25.84, 9.54)
CIE-LCH	lch(11.40, 27.55, 20.26°)
OKLab	oklab(24.63% 0.0771 0.024)
OKLCH	oklch(24.63% 0.081 17.3)
XYZ	xyz(2.2679, 1.3178, 0.7071)
Luminance	0.0132 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0A12 #0A3F37

analogous

#3F0A2D #3F0A12 #3F1D0A

triadic

#3F0A12 #123F0A #0A123F

tetradic

#3F0A12 #2D3F0A #0A3F37 #1D0A3F

square

#3F0A12 #2D3F0A #0A3F37 #1D0A3F

split-complementary

#3F0A12 #0A3F1D #0A2D3F

monochromatic

#1A0408 #1A0408 #3F0A12 #741221 #A91B30

Accessibility & contrast

On white

16.62

#3F0A12 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#3F0A12 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0A12

16.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0A12	#FFFFFF	#000000	##FFFFFF
##3F0A12	1.00	16.62	1.26	16.62
#FFFFFF	16.62	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#191712

Deuteranopia (green-blind)

#262211

Tritanopia (blue-blind)

#46000D

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #3f0a12;
/* rgb */ color: rgb(63, 10, 18);
/* oklch */ color: oklch(24.6% 0.081 17.3);

Tailwind

colors: {
  custom: {
    50: '#794e4f',
    500: '#3f0a12',
    950: '#000000',
  },
}

SCSS

$custom: #3f0a12;
$custom-light: #794e4f;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0a12",
  "rgb": {
    "r": 63,
    "g": 10,
    "b": 18
  },
  "hsl": {
    "h": 350.943,
    "s": 72.603,
    "l": 14.314
  },
  "oklch": {
    "l": 0.24629,
    "c": 0.08072,
    "h": 17.3
  },
  "luminance": 0.01318
}

Semantic roles & 50–950 ramp

primary

#3F0A12

secondary

#297C70

accent

#EFD438

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0202

muted

#7C7878

Preview Lab

Preview with #3F0A12

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

Preview Lab → · Contrast checker → · Palette generator →