#66111B#66111B

#66111B is a dark, moderate red. Relative luminance 0.033; OKLCH L 33.5% C 0.117 H 20.6°. Best body text is #FFFFFF at 12.64:1 contrast (WCAG AA passes).

Color values

HEX	#66111B
RGB	rgb(102, 17, 27)
HSL	hsl(353, 71%, 23%)
HSV	hsv(353, 83%, 40%)
CMYK	cmyk(0%, 83.3%, 73.5%, 60%)
CIE-LAB	lab(21.23, 37.26, 17.72)
CIE-LCH	lch(21.23, 41.26, 25.44°)
OKLab	oklab(33.55% 0.1098 0.0412)
OKLCH	oklch(33.55% 0.117 20.6)
XYZ	xyz(5.8784, 3.3057, 1.3652)
Luminance	0.0331 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66111B #11665C

analogous

#661145 #66111B #663111

triadic

#66111B #1B6611 #111B66

tetradic

#66111B #456611 #11665C #311166

square

#66111B #456611 #11665C #311166

split-complementary

#66111B #116631 #114566

monochromatic

#1A0407 #32080D #66111B #9A1A29 #CF2237

Accessibility & contrast

On white

12.64

#66111B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#66111B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66111B

12.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66111B	#FFFFFF	#000000	##FFFFFF
##66111B	1.00	12.64	1.66	12.64
#FFFFFF	12.64	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B271B

Deuteranopia (green-blind)

#403918

Tritanopia (blue-blind)

#710016

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #66111b;
/* rgb */ color: rgb(102, 17, 27);
/* oklch */ color: oklch(33.5% 0.117 20.6);

Tailwind

colors: {
  custom: {
    50: '#985857',
    500: '#66111b',
    950: '#000000',
  },
}

SCSS

$custom: #66111b;
$custom-light: #985857;
$custom-dark: #000000;

JSON

{
  "hex": "#66111b",
  "rgb": {
    "r": 102,
    "g": 17,
    "b": 27
  },
  "hsl": {
    "h": 352.941,
    "s": 71.429,
    "l": 23.333
  },
  "oklch": {
    "l": 0.33545,
    "c": 0.11725,
    "h": 20.6
  },
  "luminance": 0.03305
}

Semantic roles & 50–950 ramp

primary

#66111B

secondary

#359E92

accent

#EED93A

background

#FAF5F5

surface

#F3E9E9

border

#CDC5C5

text

#0F0403

muted

#7F7978

Preview Lab

Preview with #66111B

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

Preview Lab → · Contrast checker → · Palette generator →