#66191B#66191B

#66191B is a dark, moderate red. Relative luminance 0.036; OKLCH L 34.3% C 0.110 H 23.7°. Best body text is #FFFFFF at 12.21:1 contrast (WCAG AA passes).

Color values

HEX	#66191B
RGB	rgb(102, 25, 27)
HSL	hsl(358, 61%, 25%)
HSV	hsv(358, 75%, 40%)
CMYK	cmyk(0%, 75.5%, 73.5%, 60%)
CIE-LAB	lab(22.30, 34.27, 19.03)
CIE-LCH	lch(22.30, 39.20, 29.04°)
OKLab	oklab(34.34% 0.1002 0.0441)
OKLCH	oklch(34.34% 0.11 23.7)
XYZ	xyz(6.0256, 3.6001, 1.4143)
Luminance	0.0360 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66191B #196664

analogous

#661941 #66191B #663E19

triadic

#66191B #1B6619 #191B66

tetradic

#66191B #416619 #196664 #3E1966

square

#66191B #416619 #196664 #3E1966

split-complementary

#66191B #19663E #194166

monochromatic

#190607 #350D0E #66191B #972528 #C83135

Accessibility & contrast

On white

12.21

#66191B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#66191B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66191B

12.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66191B	#FFFFFF	#000000	##FFFFFF
##66191B	1.00	12.21	1.72	12.21
#FFFFFF	12.21	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F2B1A

Deuteranopia (green-blind)

#423B19

Tritanopia (blue-blind)

#71011B

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #66191b;
/* rgb */ color: rgb(102, 25, 27);
/* oklch */ color: oklch(34.3% 0.110 23.7);

Tailwind

colors: {
  custom: {
    50: '#985c57',
    500: '#66191b',
    950: '#000000',
  },
}

SCSS

$custom: #66191b;
$custom-light: #985c57;
$custom-dark: #000000;

JSON

{
  "hex": "#66191b",
  "rgb": {
    "r": 102,
    "g": 25,
    "b": 27
  },
  "hsl": {
    "h": 358.442,
    "s": 60.63,
    "l": 24.902
  },
  "oklch": {
    "l": 0.34343,
    "c": 0.10951,
    "h": 23.7
  },
  "luminance": 0.03599
}

Semantic roles & 50–950 ramp

primary

#66191B

secondary

#3F9C99

accent

#E4E044

background

#FAF5F5

surface

#F3E9E9

border

#CDC5C5

text

#0F0403

muted

#7F7978

Preview Lab

Preview with #66191B

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

Preview Lab → · Contrast checker → · Palette generator →