#3F131C#3F131C

#3F131C is a dark, moderate red. Relative luminance 0.016; OKLCH L 26.1% C 0.069 H 10.8°. Best body text is #FFFFFF at 15.89:1 contrast (WCAG AA passes).

Color values

HEX	#3F131C
RGB	rgb(63, 19, 28)
HSL	hsl(348, 54%, 16%)
HSV	hsv(348, 70%, 25%)
CMYK	cmyk(0%, 69.8%, 55.6%, 75.3%)
CIE-LAB	lab(13.27, 22.39, 5.02)
CIE-LCH	lch(13.27, 22.94, 12.65°)
OKLab	oklab(26.11% 0.0678 0.0129)
OKLCH	oklch(26.11% 0.069 10.8)
XYZ	xyz(2.4926, 1.6066, 1.2772)
Luminance	0.0161 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F131C #133F36

analogous

#3F1332 #3F131C #3F2013

triadic

#3F131C #1C3F13 #131C3F

tetradic

#3F131C #323F13 #133F36 #20133F

square

#3F131C #323F13 #133F36 #20133F

split-complementary

#3F131C #133F20 #13323F

monochromatic

#18070A #18070A #3F131C #6E2131 #9D2F46

Accessibility & contrast

On white

15.89

#3F131C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#3F131C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F131C

15.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F131C	#FFFFFF	#000000	##FFFFFF
##3F131C	1.00	15.89	1.32	15.89
#FFFFFF	15.89	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D1D1C

Deuteranopia (green-blind)

#28251B

Tritanopia (blue-blind)

#450D16

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #3f131c;
/* rgb */ color: rgb(63, 19, 28);
/* oklch */ color: oklch(26.1% 0.069 10.8);

Tailwind

colors: {
  custom: {
    50: '#775357',
    500: '#3f131c',
    950: '#000000',
  },
}

SCSS

$custom: #3f131c;
$custom-light: #775357;
$custom-dark: #000000;

JSON

{
  "hex": "#3f131c",
  "rgb": {
    "r": 63,
    "g": 19,
    "b": 28
  },
  "hsl": {
    "h": 347.727,
    "s": 53.659,
    "l": 16.078
  },
  "oklch": {
    "l": 0.26108,
    "c": 0.06906,
    "h": 10.8
  },
  "luminance": 0.01606
}

Semantic roles & 50–950 ramp

primary

#3F131C

secondary

#36786A

accent

#DDBF4B

background

#F7F4F5

surface

#EDE7E9

border

#C8C3C5

text

#090203

muted

#7B7878

Preview Lab

Preview with #3F131C

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

Preview Lab → · Contrast checker → · Palette generator →