#66161D#66161D

#66161D is a dark, moderate red. Relative luminance 0.035; OKLCH L 34.1% C 0.112 H 21.0°. Best body text is #FFFFFF at 12.37:1 contrast (WCAG AA passes).

Color values

HEX	#66161D
RGB	rgb(102, 22, 29)
HSL	hsl(355, 65%, 24%)
HSV	hsv(355, 78%, 40%)
CMYK	cmyk(0%, 78.4%, 71.6%, 60%)
CIE-LAB	lab(21.90, 35.59, 17.19)
CIE-LCH	lch(21.90, 39.53, 25.78°)
OKLab	oklab(34.06% 0.1049 0.0403)
OKLCH	oklch(34.06% 0.112 21)
XYZ	xyz(5.9888, 3.4882, 1.5201)
Luminance	0.0349 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66161D #16665F

analogous

#661645 #66161D #663716

triadic

#66161D #1D6616 #161D66

tetradic

#66161D #456616 #16665F #371666

square

#66161D #456616 #16665F #371666

split-complementary

#66161D #166637 #164566

monochromatic

#190507 #340B0F #66161D #98212B #CB2C3A

Accessibility & contrast

On white

12.37

#66161D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#66161D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66161D

12.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66161D	#FFFFFF	#000000	##FFFFFF
##66161D	1.00	12.37	1.70	12.37
#FFFFFF	12.37	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D2A1D

Deuteranopia (green-blind)

#413B1B

Tritanopia (blue-blind)

#710019

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #66161d;
/* rgb */ color: rgb(102, 22, 29);
/* oklch */ color: oklch(34.1% 0.112 21.0);

Tailwind

colors: {
  custom: {
    50: '#985b58',
    500: '#66161d',
    950: '#000000',
  },
}

SCSS

$custom: #66161d;
$custom-light: #985b58;
$custom-dark: #000000;

JSON

{
  "hex": "#66161d",
  "rgb": {
    "r": 102,
    "g": 22,
    "b": 29
  },
  "hsl": {
    "h": 354.75,
    "s": 64.516,
    "l": 24.314
  },
  "oklch": {
    "l": 0.34056,
    "c": 0.1124,
    "h": 21
  },
  "luminance": 0.03487
}

Semantic roles & 50–950 ramp

primary

#66161D

secondary

#3B9D94

accent

#E8D940

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0F0403

muted

#7E7978

Preview Lab

Preview with #66161D

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

Preview Lab → · Contrast checker → · Palette generator →