#6B1421#6B1421

#6B1421 is a dark, moderate red. Relative luminance 0.037; OKLCH L 34.9% C 0.120 H 18.3°. Best body text is #FFFFFF at 12.02:1 contrast (WCAG AA passes).

Color values

HEX	#6B1421
RGB	rgb(107, 20, 33)
HSL	hsl(351, 69%, 25%)
HSV	hsv(351, 81%, 42%)
CMYK	cmyk(0%, 81.3%, 69.2%, 58%)
CIE-LAB	lab(22.78, 38.23, 15.79)
CIE-LCH	lch(22.78, 41.37, 22.45°)
OKLab	oklab(34.92% 0.1136 0.0376)
OKLCH	oklch(34.92% 0.12 18.3)
XYZ	xyz(6.5888, 3.7369, 1.8129)
Luminance	0.0374 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6B1421 #146B5E

analogous

#6B144D #6B1421 #6B3214

triadic

#6B1421 #216B14 #14216B

tetradic

#6B1421 #4D6B14 #146B5E #32146B

square

#6B1421 #4D6B14 #146B5E #32146B

split-complementary

#6B1421 #146B32 #144D6B

monochromatic

#1A0508 #370A11 #6B1421 #9F1E31 #D22741

Accessibility & contrast

On white

12.02

#6B1421 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#6B1421 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #6B1421

12.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6B1421	#FFFFFF	#000000	##FFFFFF
##6B1421	1.00	12.02	1.75	12.02
#FFFFFF	12.02	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D2B21

Deuteranopia (green-blind)

#433D1E

Tritanopia (blue-blind)

#76001A

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #6b1421;
/* rgb */ color: rgb(107, 20, 33);
/* oklch */ color: oklch(34.9% 0.120 18.3);

Tailwind

colors: {
  custom: {
    50: '#9c5b5c',
    500: '#6b1421',
    950: '#000000',
  },
}

SCSS

$custom: #6b1421;
$custom-light: #9c5b5c;
$custom-dark: #000000;

JSON

{
  "hex": "#6b1421",
  "rgb": {
    "r": 107,
    "g": 20,
    "b": 33
  },
  "hsl": {
    "h": 351.034,
    "s": 68.504,
    "l": 24.902
  },
  "oklch": {
    "l": 0.34925,
    "c": 0.1196,
    "h": 18.3
  },
  "luminance": 0.03736
}

Semantic roles & 50–950 ramp

primary

#6B1421

secondary

#39A292

accent

#EBD13C

background

#FAF5F5

surface

#F4E9E9

border

#CEC5C5

text

#0F0404

muted

#7F7979

Preview Lab

Preview with #6B1421

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

Preview Lab → · Contrast checker → · Palette generator →