#66131F#66131F

#66131F is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.8% C 0.115 H 18.5°. Best body text is #FFFFFF at 12.52:1 contrast (WCAG AA passes).

Color values

HEX	#66131F
RGB	rgb(102, 19, 31)
HSL	hsl(351, 69%, 24%)
HSV	hsv(351, 81%, 40%)
CMYK	cmyk(0%, 81.4%, 69.6%, 60%)
CIE-LAB	lab(21.54, 36.82, 15.37)
CIE-LCH	lch(21.54, 39.90, 22.66°)
OKLab	oklab(33.8% 0.1093 0.0365)
OKLCH	oklch(33.8% 0.115 18.5)
XYZ	xyz(5.9603, 3.3904, 1.6366)
Luminance	0.0339 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66131F #13665A

analogous

#661348 #66131F #663013

triadic

#66131F #1F6613 #131F66

tetradic

#66131F #486613 #13665A #301366

square

#66131F #486613 #13665A #301366

split-complementary

#66131F #136630 #134866

monochromatic

#1A0508 #32090F #66131F #9A1D2F #CD263E

Accessibility & contrast

On white

12.52

#66131F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#66131F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66131F

12.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66131F	#FFFFFF	#000000	##FFFFFF
##66131F	1.00	12.52	1.68	12.52
#FFFFFF	12.52	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B291F

Deuteranopia (green-blind)

#403A1D

Tritanopia (blue-blind)

#710018

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #66131f;
/* rgb */ color: rgb(102, 19, 31);
/* oklch */ color: oklch(33.8% 0.115 18.5);

Tailwind

colors: {
  custom: {
    50: '#98595a',
    500: '#66131f',
    950: '#000000',
  },
}

SCSS

$custom: #66131f;
$custom-light: #98595a;
$custom-dark: #000000;

JSON

{
  "hex": "#66131f",
  "rgb": {
    "r": 102,
    "g": 19,
    "b": 31
  },
  "hsl": {
    "h": 351.325,
    "s": 68.595,
    "l": 23.725
  },
  "oklch": {
    "l": 0.33802,
    "c": 0.11526,
    "h": 18.5
  },
  "luminance": 0.03389
}

Semantic roles & 50–950 ramp

primary

#66131F

secondary

#379D8F

accent

#EBD23C

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0F0403

muted

#7E7978

Preview Lab

Preview with #66131F

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

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