#3F170E#3F170E

#3F170E is a dark, moderate red. Relative luminance 0.017; OKLCH L 26.4% C 0.065 H 34.1°. Best body text is #FFFFFF at 15.67:1 contrast (WCAG AA passes).

Color values

HEX	#3F170E
RGB	rgb(63, 23, 14)
HSL	hsl(11, 64%, 15%)
HSV	hsv(11, 78%, 25%)
CMYK	cmyk(0%, 63.5%, 77.8%, 75.3%)
CIE-LAB	lab(13.84, 18.81, 15.05)
CIE-LCH	lch(13.84, 24.09, 38.67°)
OKLab	oklab(26.43% 0.054 0.0366)
OKLCH	oklch(26.43% 0.065 34.1)
XYZ	xyz(2.4358, 1.7016, 0.6155)
Luminance	0.0170 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F170E #0E363F

analogous

#3F0E1E #3F170E #3F2F0E

triadic

#3F170E #0E3F17 #170E3F

tetradic

#3F170E #1E3F0E #0E363F #2F0E3F

square

#3F170E #1E3F0E #0E363F #2F0E3F

split-complementary

#3F170E #0E3F2F #0E1E3F

monochromatic

#190906 #190906 #3F170E #712919 #A33C24

Accessibility & contrast

On white

15.67

#3F170E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#3F170E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F170E

15.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F170E	#FFFFFF	#000000	##FFFFFF
##3F170E	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)

#221E0D

Deuteranopia (green-blind)

#2B270D

Tritanopia (blue-blind)

#460F15

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #3f170e;
/* rgb */ color: rgb(63, 23, 14);
/* oklch */ color: oklch(26.4% 0.065 34.1);

Tailwind

colors: {
  custom: {
    50: '#78554d',
    500: '#3f170e',
    950: '#000000',
  },
}

SCSS

$custom: #3f170e;
$custom-light: #78554d;
$custom-dark: #000000;

JSON

{
  "hex": "#3f170e",
  "rgb": {
    "r": 63,
    "g": 23,
    "b": 14
  },
  "hsl": {
    "h": 11.02,
    "s": 63.636,
    "l": 15.098
  },
  "oklch": {
    "l": 0.26433,
    "c": 0.06518,
    "h": 34.1
  },
  "luminance": 0.01701
}

Semantic roles & 50–950 ramp

primary

#3F170E

secondary

#2F6C7A

accent

#C8E741

background

#F7F5F4

surface

#EEE9E7

border

#C9C5C3

text

#090301

muted

#7B7877

Preview Lab

Preview with #3F170E

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

Preview Lab → · Contrast checker → · Palette generator →