#6B231B#6B231B

#6B231B is a dark, moderate red. Relative luminance 0.044; OKLCH L 36.5% C 0.105 H 29.4°. Best body text is #FFFFFF at 11.16:1 contrast (WCAG AA passes).

Color values

HEX	#6B231B
RGB	rgb(107, 35, 27)
HSL	hsl(6, 60%, 26%)
HSV	hsv(6, 75%, 42%)
CMYK	cmyk(0%, 67.3%, 74.8%, 58%)
CIE-LAB	lab(24.98, 31.58, 22.43)
CIE-LCH	lch(24.98, 38.74, 35.38°)
OKLab	oklab(36.53% 0.0911 0.0513)
OKLCH	oklch(36.53% 0.105 29.4)
XYZ	xyz(6.8630, 4.4080, 1.5261)
Luminance	0.0441 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6B231B #1B636B

analogous

#6B1B3B #6B231B #6B4B1B

triadic

#6B231B #1B6B23 #231B6B

tetradic

#6B231B #3B6B1B #1B636B #4B1B6B

square

#6B231B #3B6B1B #1B636B #4B1B6B

split-complementary

#6B231B #1B6B4B #1B3B6B

monochromatic

#180806 #3A130F #6B231B #9C3327 #CC4435

Accessibility & contrast

On white

11.16

#6B231B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#6B231B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #6B231B

11.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6B231B	#FFFFFF	#000000	##FFFFFF
##6B231B	1.00	11.16	1.88	11.16
#FFFFFF	11.16	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#37311A

Deuteranopia (green-blind)

#494119

Tritanopia (blue-blind)

#761122

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #6b231b;
/* rgb */ color: rgb(107, 35, 27);
/* oklch */ color: oklch(36.5% 0.105 29.4);

Tailwind

colors: {
  custom: {
    50: '#9b6257',
    500: '#6b231b',
    950: '#000000',
  },
}

SCSS

$custom: #6b231b;
$custom-light: #9b6257;
$custom-dark: #000000;

JSON

{
  "hex": "#6b231b",
  "rgb": {
    "r": 107,
    "g": 35,
    "b": 27
  },
  "hsl": {
    "h": 6,
    "s": 59.701,
    "l": 26.275
  },
  "oklch": {
    "l": 0.36532,
    "c": 0.10455,
    "h": 29.4
  },
  "luminance": 0.04407
}

Semantic roles & 50–950 ramp

primary

#6B231B

secondary

#4297A0

accent

#D3E345

background

#FAF5F5

surface

#F4EAE9

border

#CEC6C5

text

#0F0503

muted

#7F7978

Preview Lab

Preview with #6B231B

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

Preview Lab → · Contrast checker → · Palette generator →