#661D17#661D17

#661D17 is a dark, moderate red. Relative luminance 0.038; OKLCH L 34.8% C 0.106 H 28.5°. Best body text is #FFFFFF at 11.98:1 contrast (WCAG AA passes).

Color values

HEX	#661D17
RGB	rgb(102, 29, 23)
HSL	hsl(5, 63%, 25%)
HSV	hsv(5, 77%, 40%)
CMYK	cmyk(0%, 71.6%, 77.5%, 60%)
CIE-LAB	lab(22.88, 32.30, 22.32)
CIE-LCH	lch(22.88, 39.26, 34.64°)
OKLab	oklab(34.76% 0.0931 0.0505)
OKLCH	oklch(34.76% 0.106 28.5)
XYZ	xyz(6.0742, 3.7663, 1.2176)
Luminance	0.0377 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661D17 #176066

analogous

#661739 #661D17 #664517

triadic

#661D17 #17661D #1D1766

tetradic

#661D17 #396617 #176066 #451766

square

#661D17 #396617 #176066 #451766

split-complementary

#661D17 #176645 #173966

monochromatic

#190706 #340F0C #661D17 #982B22 #CA392E

Accessibility & contrast

On white

11.98

#661D17 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#661D17 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661D17

11.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661D17	#FFFFFF	#000000	##FFFFFF
##661D17	1.00	11.98	1.75	11.98
#FFFFFF	11.98	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#322D16

Deuteranopia (green-blind)

#443C15

Tritanopia (blue-blind)

#71081C

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #661d17;
/* rgb */ color: rgb(102, 29, 23);
/* oklch */ color: oklch(34.8% 0.106 28.5);

Tailwind

colors: {
  custom: {
    50: '#985e54',
    500: '#661d17',
    950: '#000000',
  },
}

SCSS

$custom: #661d17;
$custom-light: #985e54;
$custom-dark: #000000;

JSON

{
  "hex": "#661d17",
  "rgb": {
    "r": 102,
    "g": 29,
    "b": 23
  },
  "hsl": {
    "h": 4.557,
    "s": 63.2,
    "l": 24.51
  },
  "oklch": {
    "l": 0.34758,
    "c": 0.10588,
    "h": 28.5
  },
  "luminance": 0.03765
}

Semantic roles & 50–950 ramp

primary

#661D17

secondary

#3C959C

accent

#DAE642

background

#FAF5F4

surface

#F3E9E7

border

#CDC5C3

text

#0F0402

muted

#7F7978

Preview Lab

Preview with #661D17

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

Preview Lab → · Contrast checker → · Palette generator →