#66161B#66161B

#66161B is a dark, moderate red. Relative luminance 0.035; OKLCH L 34.0% C 0.113 H 22.4°. Best body text is #FFFFFF at 12.38:1 contrast (WCAG AA passes).

Color values

HEX	#66161B
RGB	rgb(102, 22, 27)
HSL	hsl(356, 65%, 24%)
HSV	hsv(356, 78%, 40%)
CMYK	cmyk(0%, 78.4%, 73.5%, 60%)
CIE-LAB	lab(21.87, 35.48, 18.50)
CIE-LCH	lch(21.87, 40.01, 27.54°)
OKLab	oklab(34.02% 0.1041 0.0429)
OKLCH	oklch(34.02% 0.113 22.4)
XYZ	xyz(5.9649, 3.4786, 1.3941)
Luminance	0.0348 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66161B #166661

analogous

#661643 #66161B #663916

triadic

#66161B #1B6616 #161B66

tetradic

#66161B #436616 #166661 #391666

square

#66161B #436616 #166661 #391666

split-complementary

#66161B #166639 #164366

monochromatic

#190507 #340B0E #66161B #982128 #CB2C36

Accessibility & contrast

On white

12.38

#66161B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#66161B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66161B

12.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66161B	#FFFFFF	#000000	##FFFFFF
##66161B	1.00	12.38	1.70	12.38
#FFFFFF	12.38	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D291A

Deuteranopia (green-blind)

#413B18

Tritanopia (blue-blind)

#710019

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #66161b;
/* rgb */ color: rgb(102, 22, 27);
/* oklch */ color: oklch(34.0% 0.113 22.4);

Tailwind

colors: {
  custom: {
    50: '#985a57',
    500: '#66161b',
    950: '#000000',
  },
}

SCSS

$custom: #66161b;
$custom-light: #985a57;
$custom-dark: #000000;

JSON

{
  "hex": "#66161b",
  "rgb": {
    "r": 102,
    "g": 22,
    "b": 27
  },
  "hsl": {
    "h": 356.25,
    "s": 64.516,
    "l": 24.314
  },
  "oklch": {
    "l": 0.34019,
    "c": 0.11257,
    "h": 22.4
  },
  "luminance": 0.03478
}

Semantic roles & 50–950 ramp

primary

#66161B

secondary

#3B9D97

accent

#E8DD40

background

#FAF5F5

surface

#F3E9E9

border

#CDC5C5

text

#0F0403

muted

#7F7978

Preview Lab

Preview with #66161B

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

Preview Lab → · Contrast checker → · Palette generator →