#66131D#66131D

#66131D is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.8% C 0.115 H 19.9°. Best body text is #FFFFFF at 12.53:1 contrast (WCAG AA passes).

Color values

HEX	#66131D
RGB	rgb(102, 19, 29)
HSL	hsl(353, 69%, 24%)
HSV	hsv(353, 81%, 40%)
CMYK	cmyk(0%, 81.4%, 71.6%, 60%)
CIE-LAB	lab(21.51, 36.70, 16.70)
CIE-LCH	lch(21.51, 40.32, 24.47°)
OKLab	oklab(33.76% 0.1084 0.0393)
OKLCH	oklch(33.76% 0.115 19.9)
XYZ	xyz(5.9348, 3.3801, 1.5021)
Luminance	0.0338 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66131D #13665C

analogous

#661346 #66131D #663213

triadic

#66131D #1D6613 #131D66

tetradic

#66131D #466613 #13665C #321366

square

#66131D #466613 #13665C #321366

split-complementary

#66131D #136632 #134666

monochromatic

#1A0507 #32090E #66131D #9A1D2C #CD263A

Accessibility & contrast

On white

12.53

#66131D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#66131D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66131D

12.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66131D	#FFFFFF	#000000	##FFFFFF
##66131D	1.00	12.53	1.68	12.53
#FFFFFF	12.53	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B281D

Deuteranopia (green-blind)

#403A1A

Tritanopia (blue-blind)

#710018

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #66131d;
/* rgb */ color: rgb(102, 19, 29);
/* oklch */ color: oklch(33.8% 0.115 19.9);

Tailwind

colors: {
  custom: {
    50: '#985958',
    500: '#66131d',
    950: '#000000',
  },
}

SCSS

$custom: #66131d;
$custom-light: #985958;
$custom-dark: #000000;

JSON

{
  "hex": "#66131d",
  "rgb": {
    "r": 102,
    "g": 19,
    "b": 29
  },
  "hsl": {
    "h": 352.771,
    "s": 68.595,
    "l": 23.725
  },
  "oklch": {
    "l": 0.33762,
    "c": 0.11532,
    "h": 19.9
  },
  "luminance": 0.03379
}

Semantic roles & 50–950 ramp

primary

#66131D

secondary

#379D91

accent

#EBD63C

background

#FAF5F5

surface

#F3E9E9

border

#CDC5C5

text

#0F0403

muted

#7F7978

Preview Lab

Preview with #66131D

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

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