#661D2B#661D2B

#661D2B is a dark, moderate red. Relative luminance 0.039; OKLCH L 35.2% C 0.104 H 13.1°. Best body text is #FFFFFF at 11.83:1 contrast (WCAG AA passes).

Color values

HEX	#661D2B
RGB	rgb(102, 29, 43)
HSL	hsl(348, 56%, 26%)
HSV	hsv(348, 72%, 40%)
CMYK	cmyk(0%, 71.6%, 57.8%, 60%)
CIE-LAB	lab(23.27, 33.69, 9.39)
CIE-LCH	lch(23.27, 34.97, 15.57°)
OKLab	oklab(35.17% 0.1017 0.0236)
OKLCH	oklch(35.17% 0.104 13.1)
XYZ	xyz(6.3555, 3.8788, 2.6990)
Luminance	0.0388 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661D2B #1D6658

analogous

#661D4F #661D2B #66331D

triadic

#661D2B #2B661D #1D2B66

tetradic

#661D2B #4F661D #1D6658 #331D66

square

#661D2B #4F661D #1D6658 #331D66

split-complementary

#661D2B #1D6633 #1D4F66

monochromatic

#18070A #360F17 #661D2B #962B3F #C53853

Accessibility & contrast

On white

11.83

#661D2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#661D2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661D2B

11.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661D2B	#FFFFFF	#000000	##FFFFFF
##661D2B	1.00	11.83	1.78	11.83
#FFFFFF	11.83	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F2E2B

Deuteranopia (green-blind)

#423D29

Tritanopia (blue-blind)

#700F23

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #661d2b;
/* rgb */ color: rgb(102, 29, 43);
/* oklch */ color: oklch(35.2% 0.104 13.1);

Tailwind

colors: {
  custom: {
    50: '#965e64',
    500: '#661d2b',
    950: '#000000',
  },
}

SCSS

$custom: #661d2b;
$custom-light: #965e64;
$custom-dark: #000000;

JSON

{
  "hex": "#661d2b",
  "rgb": {
    "r": 102,
    "g": 29,
    "b": 43
  },
  "hsl": {
    "h": 348.493,
    "s": 55.725,
    "l": 25.686
  },
  "oklch": {
    "l": 0.35169,
    "c": 0.10437,
    "h": 13.1
  },
  "luminance": 0.03878
}

Semantic roles & 50–950 ramp

primary

#661D2B

secondary

#449B8A

accent

#DFC249

background

#F9F5F5

surface

#F2E9EA

border

#CCC5C6

text

#0E0505

muted

#7E7979

Preview Lab

Preview with #661D2B

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

Preview Lab → · Contrast checker → · Palette generator →