#3F0A13#3F0A13

#3F0A13 is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.7% C 0.081 H 16.1°. Best body text is #FFFFFF at 16.61:1 contrast (WCAG AA passes).

Color values

HEX	#3F0A13
RGB	rgb(63, 10, 19)
HSL	hsl(350, 73%, 14%)
HSV	hsv(350, 84%, 25%)
CMYK	cmyk(0%, 84.1%, 69.8%, 75.3%)
CIE-LAB	lab(11.42, 25.92, 8.95)
CIE-LCH	lch(11.42, 27.42, 19.05°)
OKLab	oklab(24.65% 0.0776 0.0224)
OKLCH	oklch(24.65% 0.081 16.1)
XYZ	xyz(2.2762, 1.3212, 0.7511)
Luminance	0.0132 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0A13 #0A3F36

analogous

#3F0A2E #3F0A13 #3F1C0A

triadic

#3F0A13 #133F0A #0A133F

tetradic

#3F0A13 #2E3F0A #0A3F36 #1C0A3F

square

#3F0A13 #2E3F0A #0A3F36 #1C0A3F

split-complementary

#3F0A13 #0A3F1C #0A2E3F

monochromatic

#1A0408 #1A0408 #3F0A13 #741223 #A91B33

Accessibility & contrast

On white

16.61

#3F0A13 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#3F0A13 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0A13

16.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0A13	#FFFFFF	#000000	##FFFFFF
##3F0A13	1.00	16.61	1.26	16.61
#FFFFFF	16.61	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#191713

Deuteranopia (green-blind)

#262212

Tritanopia (blue-blind)

#46000E

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #3f0a13;
/* rgb */ color: rgb(63, 10, 19);
/* oklch */ color: oklch(24.7% 0.081 16.1);

Tailwind

colors: {
  custom: {
    50: '#794e50',
    500: '#3f0a13',
    950: '#000000',
  },
}

SCSS

$custom: #3f0a13;
$custom-light: #794e50;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0a13",
  "rgb": {
    "r": 63,
    "g": 10,
    "b": 19
  },
  "hsl": {
    "h": 349.811,
    "s": 72.603,
    "l": 14.314
  },
  "oklch": {
    "l": 0.24654,
    "c": 0.08074,
    "h": 16.1
  },
  "luminance": 0.01321
}

Semantic roles & 50–950 ramp

primary

#3F0A13

secondary

#297C6E

accent

#EFD038

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0202

muted

#7C7878

Preview Lab

Preview with #3F0A13

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

Preview Lab → · Contrast checker → · Palette generator →