#6B151D#6B151D

#6B151D is a dark, moderate red. Relative luminance 0.038; OKLCH L 34.9% C 0.119 H 21.3°. Best body text is #FFFFFF at 12.00:1 contrast (WCAG AA passes).

Color values

HEX	#6B151D
RGB	rgb(107, 21, 29)
HSL	hsl(354, 67%, 25%)
HSV	hsv(354, 80%, 42%)
CMYK	cmyk(0%, 80.4%, 72.9%, 58%)
CIE-LAB	lab(22.83, 37.65, 18.57)
CIE-LCH	lch(22.83, 41.98, 26.26°)
OKLab	oklab(34.94% 0.1107 0.0432)
OKLCH	oklch(34.94% 0.119 21.3)
XYZ	xyz(6.5541, 3.7518, 1.5412)
Luminance	0.0375 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6B151D #156B63

analogous

#6B1548 #6B151D #6B3815

triadic

#6B151D #1D6B15 #151D6B

tetradic

#6B151D #486B15 #156B63 #38156B

square

#6B151D #486B15 #156B63 #38156B

split-complementary

#6B151D #156B38 #15486B

monochromatic

#1A0507 #380B0F #6B151D #9E1F2B #D12939

Accessibility & contrast

On white

12.00

#6B151D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#6B151D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #6B151D

12.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6B151D	#FFFFFF	#000000	##FFFFFF
##6B151D	1.00	12.00	1.75	12.00
#FFFFFF	12.00	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E2B1D

Deuteranopia (green-blind)

#443D1A

Tritanopia (blue-blind)

#760019

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #6b151d;
/* rgb */ color: rgb(107, 21, 29);
/* oklch */ color: oklch(34.9% 0.119 21.3);

Tailwind

colors: {
  custom: {
    50: '#9c5b58',
    500: '#6b151d',
    950: '#000000',
  },
}

SCSS

$custom: #6b151d;
$custom-light: #9c5b58;
$custom-dark: #000000;

JSON

{
  "hex": "#6b151d",
  "rgb": {
    "r": 107,
    "g": 21,
    "b": 29
  },
  "hsl": {
    "h": 354.419,
    "s": 67.188,
    "l": 25.098
  },
  "oklch": {
    "l": 0.3494,
    "c": 0.11886,
    "h": 21.3
  },
  "luminance": 0.03751
}

Semantic roles & 50–950 ramp

primary

#6B151D

secondary

#3AA298

accent

#EADA3E

background

#FAF5F5

surface

#F4E9E9

border

#CEC5C5

text

#0F0403

muted

#7F7978

Preview Lab

Preview with #6B151D

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

Preview Lab → · Contrast checker → · Palette generator →