#3F170D#3F170D

#3F170D is a dark, moderate red. Relative luminance 0.017; OKLCH L 26.4% C 0.066 H 35.2°. Best body text is #FFFFFF at 15.67:1 contrast (WCAG AA passes).

Color values

HEX	#3F170D
RGB	rgb(63, 23, 13)
HSL	hsl(12, 66%, 15%)
HSV	hsv(12, 79%, 25%)
CMYK	cmyk(0%, 63.5%, 79.4%, 75.3%)
CIE-LAB	lab(13.82, 18.74, 15.52)
CIE-LCH	lch(13.82, 24.34, 39.63°)
OKLab	oklab(26.42% 0.0535 0.0378)
OKLCH	oklch(26.42% 0.066 35.2)
XYZ	xyz(2.4292, 1.6989, 0.5807)
Luminance	0.0170 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F170D #0D353F

analogous

#3F0D1C #3F170D #3F300D

triadic

#3F170D #0D3F17 #170D3F

tetradic

#3F170D #1C3F0D #0D353F #300D3F

square

#3F170D #1C3F0D #0D353F #300D3F

split-complementary

#3F170D #0D3F30 #0D1C3F

monochromatic

#190905 #190905 #3F170D #722A17 #A43C22

Accessibility & contrast

On white

15.67

#3F170D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#3F170D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F170D

15.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F170D	#FFFFFF	#000000	##FFFFFF
##3F170D	1.00	15.67	1.34	15.67
#FFFFFF	15.67	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#221E0C

Deuteranopia (green-blind)

#2C270C

Tritanopia (blue-blind)

#460F15

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #3f170d;
/* rgb */ color: rgb(63, 23, 13);
/* oklch */ color: oklch(26.4% 0.066 35.2);

Tailwind

colors: {
  custom: {
    50: '#78554c',
    500: '#3f170d',
    950: '#000000',
  },
}

SCSS

$custom: #3f170d;
$custom-light: #78554c;
$custom-dark: #000000;

JSON

{
  "hex": "#3f170d",
  "rgb": {
    "r": 63,
    "g": 23,
    "b": 13
  },
  "hsl": {
    "h": 12,
    "s": 65.789,
    "l": 14.902
  },
  "oklch": {
    "l": 0.26417,
    "c": 0.06552,
    "h": 35.2
  },
  "luminance": 0.01699
}

Semantic roles & 50–950 ramp

primary

#3F170D

secondary

#2D6B7B

accent

#C7E93F

background

#F7F5F4

surface

#EEE9E7

border

#C9C5C3

text

#090301

muted

#7B7877

Preview Lab

Preview with #3F170D

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

Preview Lab → · Contrast checker → · Palette generator →