#66172A#66172A

#66172A is a dark, moderate red. Relative luminance 0.036; OKLCH L 34.5% C 0.112 H 11.4°. Best body text is #FFFFFF at 12.20:1 contrast (WCAG AA passes).

Color values

HEX	#66172A
RGB	rgb(102, 23, 42)
HSL	hsl(346, 63%, 25%)
HSV	hsv(346, 77%, 40%)
CMYK	cmyk(0%, 77.5%, 58.8%, 60%)
CIE-LAB	lab(22.32, 36.14, 8.78)
CIE-LCH	lch(22.32, 37.19, 13.66°)
OKLab	oklab(34.46% 0.1094 0.0221)
OKLCH	oklch(34.46% 0.112 11.4)
XYZ	xyz(6.2044, 3.6056, 2.5593)
Luminance	0.0360 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66172A #176653

analogous

#661752 #66172A #662C17

triadic

#66172A #2A6617 #172A66

tetradic

#66172A #526617 #176653 #2C1766

square

#66172A #526617 #176653 #2C1766

split-complementary

#66172A #17662C #175266

monochromatic

#19060A #340C15 #66172A #98223F #CA2E53

Accessibility & contrast

On white

12.20

#66172A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#66172A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66172A

12.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66172A	#FFFFFF	#000000	##FFFFFF
##66172A	1.00	12.20	1.72	12.20
#FFFFFF	12.20	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B2B2A

Deuteranopia (green-blind)

#403B28

Tritanopia (blue-blind)

#70031F

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #66172a;
/* rgb */ color: rgb(102, 23, 42);
/* oklch */ color: oklch(34.5% 0.112 11.4);

Tailwind

colors: {
  custom: {
    50: '#975b63',
    500: '#66172a',
    950: '#000000',
  },
}

SCSS

$custom: #66172a;
$custom-light: #975b63;
$custom-dark: #000000;

JSON

{
  "hex": "#66172a",
  "rgb": {
    "r": 102,
    "g": 23,
    "b": 42
  },
  "hsl": {
    "h": 345.57,
    "s": 63.2,
    "l": 24.51
  },
  "oklch": {
    "l": 0.34459,
    "c": 0.11156,
    "h": 11.4
  },
  "luminance": 0.03605
}

Semantic roles & 50–950 ramp

primary

#66172A

secondary

#3C9C85

accent

#E6BF42

background

#F9F5F5

surface

#F2E9EA

border

#CCC5C6

text

#0E0405

muted

#7E7979

Preview Lab

Preview with #66172A

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

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