#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
RGBrgb(102, 19, 29)
HSLhsl(353, 69%, 24%)
HSVhsv(353, 81%, 40%)
CMYKcmyk(0%, 81.4%, 71.6%, 60%)
CIE-LABlab(21.51, 36.70, 16.70)
CIE-LCHlch(21.51, 40.32, 24.47°)
OKLaboklab(33.76% 0.1084 0.0393)
OKLCHoklch(33.76% 0.115 19.9)
XYZxyz(5.9348, 3.3801, 1.5021)
Luminance0.0338 (WCAG relative)
Temperaturewarm
Familyred

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
##66131D1.0012.531.6812.53
#FFFFFF12.531.0021.001.00
#0000001.6821.001.0021.00
##FFFFFF12.531.0021.001.00

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.

Preview Lab → · Contrast checker → · Palette generator →

#66131D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva