#661D2D#661D2D

#661D2D is a dark, moderate red. Relative luminance 0.039; OKLCH L 35.2% C 0.105 H 11.3°. Best body text is #FFFFFF at 11.81:1 contrast (WCAG AA passes).

Color values

HEX	#661D2D
RGB	rgb(102, 29, 45)
HSL	hsl(347, 56%, 26%)
HSV	hsv(347, 72%, 40%)
CMYK	cmyk(0%, 71.6%, 55.9%, 60%)
CIE-LAB	lab(23.32, 33.87, 8.08)
CIE-LCH	lch(23.32, 34.82, 13.42°)
OKLab	oklab(35.22% 0.1025 0.0205)
OKLCH	oklch(35.22% 0.105 11.3)
XYZ	xyz(6.3931, 3.8938, 2.8970)
Luminance	0.0389 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661D2D #1D6656

analogous

#661D51 #661D2D #66311D

triadic

#661D2D #2D661D #1D2D66

tetradic

#661D2D #51661D #1D6656 #311D66

square

#661D2D #51661D #1D6656 #311D66

split-complementary

#661D2D #1D6631 #1D5166

monochromatic

#18070B #360F18 #661D2D #962B42 #C53857

Accessibility & contrast

On white

11.81

#661D2D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#661D2D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661D2D

11.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661D2D	#FFFFFF	#000000	##FFFFFF
##661D2D	1.00	11.81	1.78	11.81
#FFFFFF	11.81	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E2E2D

Deuteranopia (green-blind)

#413D2B

Tritanopia (blue-blind)

#700F23

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #661d2d;
/* rgb */ color: rgb(102, 29, 45);
/* oklch */ color: oklch(35.2% 0.105 11.3);

Tailwind

colors: {
  custom: {
    50: '#965e65',
    500: '#661d2d',
    950: '#000000',
  },
}

SCSS

$custom: #661d2d;
$custom-light: #965e65;
$custom-dark: #000000;

JSON

{
  "hex": "#661d2d",
  "rgb": {
    "r": 102,
    "g": 29,
    "b": 45
  },
  "hsl": {
    "h": 346.849,
    "s": 55.725,
    "l": 25.686
  },
  "oklch": {
    "l": 0.35223,
    "c": 0.10457,
    "h": 11.3
  },
  "luminance": 0.03893
}

Semantic roles & 50–950 ramp

primary

#661D2D

secondary

#449B88

accent

#DFBE49

background

#F9F5F6

surface

#F2E9EB

border

#CCC5C6

text

#0E0505

muted

#7E797A

Preview Lab

Preview with #661D2D

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

Preview Lab → · Contrast checker → · Palette generator →