#6B151F#6B151F

#6B151F is a dark, moderate red. Relative luminance 0.038; OKLCH L 35.0% C 0.119 H 20.0°. Best body text is #FFFFFF at 11.98:1 contrast (WCAG AA passes).

Color values

HEX	#6B151F
RGB	rgb(107, 21, 31)
HSL	hsl(353, 67%, 25%)
HSV	hsv(353, 80%, 42%)
CMYK	cmyk(0%, 80.4%, 71%, 58%)
CIE-LAB	lab(22.87, 37.76, 17.27)
CIE-LCH	lch(22.87, 41.52, 24.57°)
OKLab	oklab(34.98% 0.1116 0.0406)
OKLCH	oklch(34.98% 0.119 20)
XYZ	xyz(6.5796, 3.7621, 1.6758)
Luminance	0.0376 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6B151F #156B61

analogous

#6B154A #6B151F #6B3615

triadic

#6B151F #1F6B15 #151F6B

tetradic

#6B151F #4A6B15 #156B61 #36156B

square

#6B151F #4A6B15 #156B61 #36156B

split-complementary

#6B151F #156B36 #154A6B

monochromatic

#1A0507 #380B10 #6B151F #9E1F2E #D1293D

Accessibility & contrast

On white

11.98

#6B151F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#6B151F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #6B151F

11.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6B151F	#FFFFFF	#000000	##FFFFFF
##6B151F	1.00	11.98	1.75	11.98
#FFFFFF	11.98	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E2B1F

Deuteranopia (green-blind)

#443D1C

Tritanopia (blue-blind)

#76001A

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #6b151f;
/* rgb */ color: rgb(107, 21, 31);
/* oklch */ color: oklch(35.0% 0.119 20.0);

Tailwind

colors: {
  custom: {
    50: '#9c5b5a',
    500: '#6b151f',
    950: '#000000',
  },
}

SCSS

$custom: #6b151f;
$custom-light: #9c5b5a;
$custom-dark: #000000;

JSON

{
  "hex": "#6b151f",
  "rgb": {
    "r": 107,
    "g": 21,
    "b": 31
  },
  "hsl": {
    "h": 353.023,
    "s": 67.188,
    "l": 25.098
  },
  "oklch": {
    "l": 0.34978,
    "c": 0.11874,
    "h": 20
  },
  "luminance": 0.03761
}

Semantic roles & 50–950 ramp

primary

#6B151F

secondary

#3AA296

accent

#EAD63E

background

#FAF5F5

surface

#F4E9E9

border

#CEC5C5

text

#0F0403

muted

#7F7978

Preview Lab

Preview with #6B151F

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

Preview Lab → · Contrast checker → · Palette generator →