#66151D#66151D

#66151D is a dark, moderate red. Relative luminance 0.035; OKLCH L 34.0% C 0.113 H 20.6°. Best body text is #FFFFFF at 12.43:1 contrast (WCAG AA passes).

Color values

HEX	#66151D
RGB	rgb(102, 21, 29)
HSL	hsl(354, 66%, 24%)
HSV	hsv(354, 79%, 40%)
CMYK	cmyk(0%, 79.4%, 71.6%, 60%)
CIE-LAB	lab(21.77, 35.97, 17.02)
CIE-LCH	lch(21.77, 39.80, 25.32°)
OKLab	oklab(33.96% 0.1061 0.04)
OKLCH	oklch(33.96% 0.113 20.6)
XYZ	xyz(5.9701, 3.4507, 1.5139)
Luminance	0.0345 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66151D #15665E

analogous

#661546 #66151D #663615

triadic

#66151D #1D6615 #151D66

tetradic

#66151D #466615 #15665E #361566

square

#66151D #466615 #15665E #361566

split-complementary

#66151D #156636 #154666

monochromatic

#190507 #330B0F #66151D #991F2B #CC2A3A

Accessibility & contrast

On white

12.43

#66151D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#66151D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66151D

12.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66151D	#FFFFFF	#000000	##FFFFFF
##66151D	1.00	12.43	1.69	12.43
#FFFFFF	12.43	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C291D

Deuteranopia (green-blind)

#413A1B

Tritanopia (blue-blind)

#710019

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #66151d;
/* rgb */ color: rgb(102, 21, 29);
/* oklch */ color: oklch(34.0% 0.113 20.6);

Tailwind

colors: {
  custom: {
    50: '#985a58',
    500: '#66151d',
    950: '#000000',
  },
}

SCSS

$custom: #66151d;
$custom-light: #985a58;
$custom-dark: #000000;

JSON

{
  "hex": "#66151d",
  "rgb": {
    "r": 102,
    "g": 21,
    "b": 29
  },
  "hsl": {
    "h": 354.074,
    "s": 65.854,
    "l": 24.118
  },
  "oklch": {
    "l": 0.33955,
    "c": 0.11341,
    "h": 20.6
  },
  "luminance": 0.0345
}

Semantic roles & 50–950 ramp

primary

#66151D

secondary

#3A9D93

accent

#E9D83F

background

#FAF5F5

surface

#F3E9E9

border

#CDC5C5

text

#0F0403

muted

#7F7978

Preview Lab

Preview with #66151D

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

Preview Lab → · Contrast checker → · Palette generator →