#6B172B#6B172B

#6B172B is a dark, moderate red. Relative luminance 0.039; OKLCH L 35.4% C 0.117 H 12.0°. Best body text is #FFFFFF at 11.78:1 contrast (WCAG AA passes).

Color values

HEX	#6B172B
RGB	rgb(107, 23, 43)
HSL	hsl(346, 65%, 25%)
HSV	hsv(346, 79%, 42%)
CMYK	cmyk(0%, 78.5%, 59.8%, 58%)
CIE-LAB	lab(23.39, 37.87, 9.71)
CIE-LCH	lch(23.39, 39.10, 14.38°)
OKLab	oklab(35.44% 0.1145 0.0243)
OKLCH	oklch(35.44% 0.117 12)
XYZ	xyz(6.8065, 3.9140, 2.6821)
Luminance	0.0391 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6B172B #176B57

analogous

#6B1755 #6B172B #6B2D17

triadic

#6B172B #2B6B17 #172B6B

tetradic

#6B172B #556B17 #176B57 #2D176B

square

#6B172B #556B17 #176B57 #2D176B

split-complementary

#6B172B #176B2D #17556B

monochromatic

#19050A #390C17 #6B172B #9D223F #D02D53

Accessibility & contrast

On white

11.78

#6B172B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#6B172B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #6B172B

11.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6B172B	#FFFFFF	#000000	##FFFFFF
##6B172B	1.00	11.78	1.78	11.78
#FFFFFF	11.78	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D2D2B

Deuteranopia (green-blind)

#433E29

Tritanopia (blue-blind)

#76001F

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #6b172b;
/* rgb */ color: rgb(107, 23, 43);
/* oklch */ color: oklch(35.4% 0.117 12.0);

Tailwind

colors: {
  custom: {
    50: '#9b5c64',
    500: '#6b172b',
    950: '#000000',
  },
}

SCSS

$custom: #6b172b;
$custom-light: #9b5c64;
$custom-dark: #000000;

JSON

{
  "hex": "#6b172b",
  "rgb": {
    "r": 107,
    "g": 23,
    "b": 43
  },
  "hsl": {
    "h": 345.714,
    "s": 64.615,
    "l": 25.49
  },
  "oklch": {
    "l": 0.35443,
    "c": 0.117,
    "h": 12
  },
  "luminance": 0.03913
}

Semantic roles & 50–950 ramp

primary

#6B172B

secondary

#3DA189

accent

#E8C040

background

#FAF5F5

surface

#F3E9EA

border

#CDC5C6

text

#0F0405

muted

#7F7979

Preview Lab

Preview with #6B172B

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

Preview Lab → · Contrast checker → · Palette generator →