#66151A#66151A

#66151A is a dark, moderate red. Relative luminance 0.034; OKLCH L 33.9% C 0.114 H 22.7°. Best body text is #FFFFFF at 12.45:1 contrast (WCAG AA passes).

Color values

HEX	#66151A
RGB	rgb(102, 21, 26)
HSL	hsl(356, 66%, 24%)
HSV	hsv(356, 79%, 40%)
CMYK	cmyk(0%, 79.4%, 74.5%, 60%)
CIE-LAB	lab(21.71, 35.80, 18.99)
CIE-LCH	lch(21.71, 40.53, 27.94°)
OKLab	oklab(33.9% 0.1049 0.0438)
OKLCH	oklch(33.9% 0.114 22.7)
XYZ	xyz(5.9348, 3.4366, 1.3279)
Luminance	0.0344 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66151A #156661

analogous

#661543 #66151A #663915

triadic

#66151A #1A6615 #151A66

tetradic

#66151A #436615 #156661 #391566

square

#66151A #436615 #156661 #391566

split-complementary

#66151A #156639 #154366

monochromatic

#190506 #330B0D #66151A #991F27 #CC2A34

Accessibility & contrast

On white

12.45

#66151A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#66151A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66151A

12.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66151A	#FFFFFF	#000000	##FFFFFF
##66151A	1.00	12.45	1.69	12.45
#FFFFFF	12.45	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D2919

Deuteranopia (green-blind)

#413A17

Tritanopia (blue-blind)

#710018

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #66151a;
/* rgb */ color: rgb(102, 21, 26);
/* oklch */ color: oklch(33.9% 0.114 22.7);

Tailwind

colors: {
  custom: {
    50: '#985a56',
    500: '#66151a',
    950: '#000000',
  },
}

SCSS

$custom: #66151a;
$custom-light: #985a56;
$custom-dark: #000000;

JSON

{
  "hex": "#66151a",
  "rgb": {
    "r": 102,
    "g": 21,
    "b": 26
  },
  "hsl": {
    "h": 356.296,
    "s": 65.854,
    "l": 24.118
  },
  "oklch": {
    "l": 0.339,
    "c": 0.11364,
    "h": 22.7
  },
  "luminance": 0.03436
}

Semantic roles & 50–950 ramp

primary

#66151A

secondary

#3A9D97

accent

#E9DE3F

background

#FAF5F5

surface

#F3E9E9

border

#CDC5C5

text

#0F0403

muted

#7F7978

Preview Lab

Preview with #66151A

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

Preview Lab → · Contrast checker → · Palette generator →