#3F151F#3F151F

#3F151F is a dark, moderate red. Relative luminance 0.017; OKLCH L 26.5% C 0.066 H 8.0°. Best body text is #FFFFFF at 15.69:1 contrast (WCAG AA passes).

Color values

HEX	#3F151F
RGB	rgb(63, 21, 31)
HSL	hsl(346, 50%, 16%)
HSV	hsv(346, 67%, 25%)
CMYK	cmyk(0%, 66.7%, 50.8%, 75.3%)
CIE-LAB	lab(13.78, 21.62, 3.54)
CIE-LCH	lch(13.78, 21.90, 9.29°)
OKLab	oklab(26.52% 0.0657 0.0093)
OKLCH	oklch(26.52% 0.066 8)
XYZ	xyz(2.5656, 1.6923, 1.4876)
Luminance	0.0169 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F151F #153F35

analogous

#3F1534 #3F151F #3F2015

triadic

#3F151F #1F3F15 #151F3F

tetradic

#3F151F #343F15 #153F35 #20153F

square

#3F151F #343F15 #153F35 #20153F

split-complementary

#3F151F #153F20 #15343F

monochromatic

#17080B #17080B #3F151F #6D2436 #9B344C

Accessibility & contrast

On white

15.69

#3F151F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#3F151F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F151F

15.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F151F	#FFFFFF	#000000	##FFFFFF
##3F151F	1.00	15.69	1.34	15.69
#FFFFFF	15.69	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E1E1F

Deuteranopia (green-blind)

#28261E

Tritanopia (blue-blind)

#451019

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #3f151f;
/* rgb */ color: rgb(63, 21, 31);
/* oklch */ color: oklch(26.5% 0.066 8.0);

Tailwind

colors: {
  custom: {
    50: '#77545a',
    500: '#3f151f',
    950: '#000000',
  },
}

SCSS

$custom: #3f151f;
$custom-light: #77545a;
$custom-dark: #000000;

JSON

{
  "hex": "#3f151f",
  "rgb": {
    "r": 63,
    "g": 21,
    "b": 31
  },
  "hsl": {
    "h": 345.714,
    "s": 50,
    "l": 16.471
  },
  "oklch": {
    "l": 0.2652,
    "c": 0.06635,
    "h": 8
  },
  "luminance": 0.01692
}

Semantic roles & 50–950 ramp

primary

#3F151F

secondary

#397768

accent

#DAB84E

background

#F7F4F5

surface

#EDE8E9

border

#C8C4C5

text

#090303

muted

#7B7878

Preview Lab

Preview with #3F151F

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

Preview Lab → · Contrast checker → · Palette generator →