#6B1818#6B1818

#6B1818 is a dark, moderate red. Relative luminance 0.038; OKLCH L 35.2% C 0.117 H 25.5°. Best body text is #FFFFFF at 11.87:1 contrast (WCAG AA passes).

Color values

HEX	#6B1818
RGB	rgb(107, 24, 24)
HSL	hsl(0, 63%, 26%)
HSV	hsv(0, 78%, 42%)
CMYK	cmyk(0%, 77.6%, 77.6%, 58%)
CIE-LAB	lab(23.16, 36.28, 22.26)
CIE-LCH	lch(23.16, 42.56, 31.53°)
OKLab	oklab(35.15% 0.1052 0.0503)
OKLCH	oklch(35.15% 0.117 25.5)
XYZ	xyz(6.5557, 3.8460, 1.2611)
Luminance	0.0384 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6B1818 #186B6B

analogous

#6B1841 #6B1818 #6B4118

triadic

#6B1818 #186B18 #18186B

tetradic

#6B1818 #416B18 #186B6B #41186B

square

#6B1818 #416B18 #186B6B #41186B

split-complementary

#6B1818 #186B41 #18416B

monochromatic

#190606 #390D0D #6B1818 #9D2323 #CF2E2E

Accessibility & contrast

On white

11.87

#6B1818 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#6B1818 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #6B1818

11.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6B1818	#FFFFFF	#000000	##FFFFFF
##6B1818	1.00	11.87	1.77	11.87
#FFFFFF	11.87	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#312C17

Deuteranopia (green-blind)

#453E15

Tritanopia (blue-blind)

#760019

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #6b1818;
/* rgb */ color: rgb(107, 24, 24);
/* oklch */ color: oklch(35.2% 0.117 25.5);

Tailwind

colors: {
  custom: {
    50: '#9c5c55',
    500: '#6b1818',
    950: '#000000',
  },
}

SCSS

$custom: #6b1818;
$custom-light: #9c5c55;
$custom-dark: #000000;

JSON

{
  "hex": "#6b1818",
  "rgb": {
    "r": 107,
    "g": 24,
    "b": 24
  },
  "hsl": {
    "h": 0,
    "s": 63.359,
    "l": 25.686
  },
  "oklch": {
    "l": 0.35155,
    "c": 0.11656,
    "h": 25.5
  },
  "luminance": 0.03845
}

Semantic roles & 50–950 ramp

primary

#6B1818

secondary

#3EA1A1

accent

#E6E641

background

#FAF5F4

surface

#F4E9E7

border

#CEC5C3

text

#0F0403

muted

#7F7978

Preview Lab

Preview with #6B1818

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

Preview Lab → · Contrast checker → · Palette generator →