#66131C#66131C

#66131C is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.7% C 0.115 H 20.6°. Best body text is #FFFFFF at 12.54:1 contrast (WCAG AA passes).

Color values

HEX	#66131C
RGB	rgb(102, 19, 28)
HSL	hsl(353, 69%, 24%)
HSV	hsv(353, 81%, 40%)
CMYK	cmyk(0%, 81.4%, 72.5%, 60%)
CIE-LAB	lab(21.49, 36.64, 17.36)
CIE-LCH	lch(21.49, 40.54, 25.35°)
OKLab	oklab(33.74% 0.108 0.0406)
OKLCH	oklch(33.74% 0.115 20.6)
XYZ	xyz(5.9226, 3.3753, 1.4380)
Luminance	0.0337 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66131C #13665D

analogous

#661345 #66131C #663313

triadic

#66131C #1C6613 #131C66

tetradic

#66131C #456613 #13665D #331366

square

#66131C #456613 #13665D #331366

split-complementary

#66131C #136633 #134566

monochromatic

#1A0507 #32090E #66131C #9A1D2A #CD2638

Accessibility & contrast

On white

12.54

#66131C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#66131C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66131C

12.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66131C	#FFFFFF	#000000	##FFFFFF
##66131C	1.00	12.54	1.67	12.54
#FFFFFF	12.54	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C281C

Deuteranopia (green-blind)

#403A19

Tritanopia (blue-blind)

#710017

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #66131c;
/* rgb */ color: rgb(102, 19, 28);
/* oklch */ color: oklch(33.7% 0.115 20.6);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#66131c",
  "rgb": {
    "r": 102,
    "g": 19,
    "b": 28
  },
  "hsl": {
    "h": 353.494,
    "s": 68.595,
    "l": 23.725
  },
  "oklch": {
    "l": 0.33743,
    "c": 0.11538,
    "h": 20.6
  },
  "luminance": 0.03374
}

Semantic roles & 50–950 ramp

primary

#66131C

secondary

#379D92

accent

#EBD83C

background

#FAF5F5

surface

#F3E9E9

border

#CDC5C5

text

#0F0403

muted

#7F7978

Preview Lab

Preview with #66131C

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

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