#661D19#661D19

#661D19 is a dark, moderate red. Relative luminance 0.038; OKLCH L 34.8% C 0.106 H 27.2°. Best body text is #FFFFFF at 11.97:1 contrast (WCAG AA passes).

Color values

HEX	#661D19
RGB	rgb(102, 29, 25)
HSL	hsl(3, 61%, 25%)
HSV	hsv(3, 75%, 40%)
CMYK	cmyk(0%, 71.6%, 75.5%, 60%)
CIE-LAB	lab(22.91, 32.41, 21.06)
CIE-LCH	lch(22.91, 38.65, 33.02°)
OKLab	oklab(34.79% 0.0939 0.0482)
OKLCH	oklch(34.79% 0.106 27.2)
XYZ	xyz(6.0950, 3.7746, 1.3271)
Luminance	0.0377 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661D19 #196266

analogous

#66193B #661D19 #664419

triadic

#661D19 #19661D #1D1966

tetradic

#661D19 #3B6619 #196266 #441966

square

#661D19 #3B6619 #196266 #441966

split-complementary

#661D19 #196644 #193B66

monochromatic

#190706 #350F0D #661D19 #972B25 #C83931

Accessibility & contrast

On white

11.97

#661D19 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#661D19 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661D19

11.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661D19	#FFFFFF	#000000	##FFFFFF
##661D19	1.00	11.97	1.75	11.97
#FFFFFF	11.97	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#312D18

Deuteranopia (green-blind)

#443D17

Tritanopia (blue-blind)

#71081D

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #661d19;
/* rgb */ color: rgb(102, 29, 25);
/* oklch */ color: oklch(34.8% 0.106 27.2);

Tailwind

colors: {
  custom: {
    50: '#985e56',
    500: '#661d19',
    950: '#000000',
  },
}

SCSS

$custom: #661d19;
$custom-light: #985e56;
$custom-dark: #000000;

JSON

{
  "hex": "#661d19",
  "rgb": {
    "r": 102,
    "g": 29,
    "b": 25
  },
  "hsl": {
    "h": 3.117,
    "s": 60.63,
    "l": 24.902
  },
  "oklch": {
    "l": 0.34789,
    "c": 0.10552,
    "h": 27.2
  },
  "luminance": 0.03774
}

Semantic roles & 50–950 ramp

primary

#661D19

secondary

#3F979C

accent

#DBE444

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0F0503

muted

#7E7978

Preview Lab

Preview with #661D19

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

Preview Lab → · Contrast checker → · Palette generator →