#66171F#66171F

#66171F is a dark, moderate red. Relative luminance 0.035; OKLCH L 34.2% C 0.111 H 20.0°. Best body text is #FFFFFF at 12.30:1 contrast (WCAG AA passes).

Color values

HEX	#66171F
RGB	rgb(102, 23, 31)
HSL	hsl(354, 63%, 25%)
HSV	hsv(354, 77%, 40%)
CMYK	cmyk(0%, 77.5%, 69.6%, 60%)
CIE-LAB	lab(22.08, 35.33, 16.05)
CIE-LCH	lch(22.08, 38.80, 24.43°)
OKLab	oklab(34.2% 0.1045 0.0381)
OKLCH	oklch(34.2% 0.111 20)
XYZ	xyz(6.0339, 3.5374, 1.6611)
Luminance	0.0354 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66171F #17665E

analogous

#661747 #66171F #663717

triadic

#66171F #1F6617 #171F66

tetradic

#66171F #476617 #17665E #371766

square

#66171F #476617 #17665E #371766

split-complementary

#66171F #176637 #174766

monochromatic

#190608 #340C10 #66171F #98222E #CA2E3D

Accessibility & contrast

On white

12.30

#66171F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#66171F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66171F

12.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66171F	#FFFFFF	#000000	##FFFFFF
##66171F	1.00	12.30	1.71	12.30
#FFFFFF	12.30	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D2A1F

Deuteranopia (green-blind)

#413B1D

Tritanopia (blue-blind)

#71001B

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #66171f;
/* rgb */ color: rgb(102, 23, 31);
/* oklch */ color: oklch(34.2% 0.111 20.0);

Tailwind

colors: {
  custom: {
    50: '#985b5a',
    500: '#66171f',
    950: '#000000',
  },
}

SCSS

$custom: #66171f;
$custom-light: #985b5a;
$custom-dark: #000000;

JSON

{
  "hex": "#66171f",
  "rgb": {
    "r": 102,
    "g": 23,
    "b": 31
  },
  "hsl": {
    "h": 353.924,
    "s": 63.2,
    "l": 24.51
  },
  "oklch": {
    "l": 0.342,
    "c": 0.11125,
    "h": 20
  },
  "luminance": 0.03537
}

Semantic roles & 50–950 ramp

primary

#66171F

secondary

#3C9C93

accent

#E6D642

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0F0403

muted

#7E7978

Preview Lab

Preview with #66171F

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

Preview Lab → · Contrast checker → · Palette generator →