#6B151C#6B151C

#6B151C is a dark, moderate red. Relative luminance 0.037; OKLCH L 34.9% C 0.119 H 21.9°. Best body text is #FFFFFF at 12.01:1 contrast (WCAG AA passes).

Color values

HEX	#6B151C
RGB	rgb(107, 21, 28)
HSL	hsl(355, 67%, 25%)
HSV	hsv(355, 80%, 42%)
CMYK	cmyk(0%, 80.4%, 73.8%, 58%)
CIE-LAB	lab(22.82, 37.59, 19.22)
CIE-LCH	lch(22.82, 42.22, 27.08°)
OKLab	oklab(34.92% 0.1103 0.0445)
OKLCH	oklch(34.92% 0.119 21.9)
XYZ	xyz(6.5419, 3.7470, 1.4772)
Luminance	0.0375 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6B151C #156B64

analogous

#6B1547 #6B151C #6B3915

triadic

#6B151C #1C6B15 #151C6B

tetradic

#6B151C #476B15 #156B64 #39156B

square

#6B151C #476B15 #156B64 #39156B

split-complementary

#6B151C #156B39 #15476B

monochromatic

#1A0507 #380B0F #6B151C #9E1F29 #D12937

Accessibility & contrast

On white

12.01

#6B151C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#6B151C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #6B151C

12.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6B151C	#FFFFFF	#000000	##FFFFFF
##6B151C	1.00	12.01	1.75	12.01
#FFFFFF	12.01	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F2B1C

Deuteranopia (green-blind)

#443D19

Tritanopia (blue-blind)

#760018

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #6b151c;
/* rgb */ color: rgb(107, 21, 28);
/* oklch */ color: oklch(34.9% 0.119 21.9);

Tailwind

colors: {
  custom: {
    50: '#9c5b58',
    500: '#6b151c',
    950: '#000000',
  },
}

SCSS

$custom: #6b151c;
$custom-light: #9c5b58;
$custom-dark: #000000;

JSON

{
  "hex": "#6b151c",
  "rgb": {
    "r": 107,
    "g": 21,
    "b": 28
  },
  "hsl": {
    "h": 355.116,
    "s": 67.188,
    "l": 25.098
  },
  "oklch": {
    "l": 0.34922,
    "c": 0.11894,
    "h": 21.9
  },
  "luminance": 0.03746
}

Semantic roles & 50–950 ramp

primary

#6B151C

secondary

#3AA299

accent

#EADC3E

background

#FAF5F5

surface

#F4E9E9

border

#CEC5C5

text

#0F0403

muted

#7F7978

Preview Lab

Preview with #6B151C

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

Preview Lab → · Contrast checker → · Palette generator →