#3F151A#3F151A

#3F151A is a dark, moderate red. Relative luminance 0.017; OKLCH L 26.4% C 0.066 H 15.6°. Best body text is #FFFFFF at 15.75:1 contrast (WCAG AA passes).

Color values

HEX	#3F151A
RGB	rgb(63, 21, 26)
HSL	hsl(353, 50%, 16%)
HSV	hsv(353, 67%, 25%)
CMYK	cmyk(0%, 66.7%, 58.7%, 75.3%)
CIE-LAB	lab(13.64, 21.04, 7.00)
CIE-LCH	lch(13.64, 22.17, 18.41°)
OKLab	oklab(26.37% 0.0633 0.0177)
OKLCH	oklch(26.37% 0.066 15.6)
XYZ	xyz(2.5047, 1.6680, 1.1671)
Luminance	0.0167 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F151A #153F3A

analogous

#3F152F #3F151A #3F2515

triadic

#3F151A #1A3F15 #151A3F

tetradic

#3F151A #2F3F15 #153F3A #25153F

square

#3F151A #2F3F15 #153F3A #25153F

split-complementary

#3F151A #153F25 #152F3F

monochromatic

#170809 #170809 #3F151A #6D242D #9B3440

Accessibility & contrast

On white

15.75

#3F151A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#3F151A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F151A

15.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F151A	#FFFFFF	#000000	##FFFFFF
##3F151A	1.00	15.75	1.33	15.75
#FFFFFF	15.75	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F1D1A

Deuteranopia (green-blind)

#292619

Tritanopia (blue-blind)

#450F17

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #3f151a;
/* rgb */ color: rgb(63, 21, 26);
/* oklch */ color: oklch(26.4% 0.066 15.6);

Tailwind

colors: {
  custom: {
    50: '#775456',
    500: '#3f151a',
    950: '#000000',
  },
}

SCSS

$custom: #3f151a;
$custom-light: #775456;
$custom-dark: #000000;

JSON

{
  "hex": "#3f151a",
  "rgb": {
    "r": 63,
    "g": 21,
    "b": 26
  },
  "hsl": {
    "h": 352.857,
    "s": 50,
    "l": 16.471
  },
  "oklch": {
    "l": 0.26366,
    "c": 0.06576,
    "h": 15.6
  },
  "luminance": 0.01668
}

Semantic roles & 50–950 ramp

primary

#3F151A

secondary

#39776F

accent

#DAC94E

background

#F7F4F5

surface

#EDE8E9

border

#C8C4C5

text

#090303

muted

#7B7878

Preview Lab

Preview with #3F151A

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

Preview Lab → · Contrast checker → · Palette generator →