#66171D#66171D

#66171D is a dark, moderate red. Relative luminance 0.035; OKLCH L 34.2% C 0.111 H 21.4°. Best body text is #FFFFFF at 12.32:1 contrast (WCAG AA passes).

Color values

HEX	#66171D
RGB	rgb(102, 23, 29)
HSL	hsl(355, 63%, 25%)
HSV	hsv(355, 77%, 40%)
CMYK	cmyk(0%, 77.5%, 71.6%, 60%)
CIE-LAB	lab(22.04, 35.20, 17.36)
CIE-LCH	lch(22.04, 39.25, 26.26°)
OKLab	oklab(34.16% 0.1037 0.0407)
OKLCH	oklch(34.16% 0.111 21.4)
XYZ	xyz(6.0083, 3.5272, 1.5266)
Luminance	0.0353 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66171D #176660

analogous

#661745 #66171D #663917

triadic

#66171D #1D6617 #171D66

tetradic

#66171D #456617 #176660 #391766

square

#66171D #456617 #176660 #391766

split-complementary

#66171D #176639 #174566

monochromatic

#190607 #340C0F #66171D #98222B #CA2E39

Accessibility & contrast

On white

12.32

#66171D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#66171D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66171D

12.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66171D	#FFFFFF	#000000	##FFFFFF
##66171D	1.00	12.32	1.71	12.32
#FFFFFF	12.32	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D2A1D

Deuteranopia (green-blind)

#413B1B

Tritanopia (blue-blind)

#71001A

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #66171d;
/* rgb */ color: rgb(102, 23, 29);
/* oklch */ color: oklch(34.2% 0.111 21.4);

Tailwind

colors: {
  custom: {
    50: '#985b58',
    500: '#66171d',
    950: '#000000',
  },
}

SCSS

$custom: #66171d;
$custom-light: #985b58;
$custom-dark: #000000;

JSON

{
  "hex": "#66171d",
  "rgb": {
    "r": 102,
    "g": 23,
    "b": 29
  },
  "hsl": {
    "h": 355.443,
    "s": 63.2,
    "l": 24.51
  },
  "oklch": {
    "l": 0.34161,
    "c": 0.11138,
    "h": 21.4
  },
  "luminance": 0.03526
}

Semantic roles & 50–950 ramp

primary

#66171D

secondary

#3C9C95

accent

#E6DA42

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0F0403

muted

#7E7978

Preview Lab

Preview with #66171D

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

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