#661B2C#661B2C

#661B2C is a dark, moderate red. Relative luminance 0.038; OKLCH L 35.0% C 0.107 H 11.3°. Best body text is #FFFFFF at 11.95:1 contrast (WCAG AA passes).

Color values

HEX	#661B2C
RGB	rgb(102, 27, 44)
HSL	hsl(346, 58%, 25%)
HSV	hsv(346, 74%, 40%)
CMYK	cmyk(0%, 73.5%, 56.9%, 60%)
CIE-LAB	lab(22.97, 34.66, 8.29)
CIE-LCH	lch(22.97, 35.64, 13.45°)
OKLab	oklab(34.96% 0.1049 0.021)
OKLCH	oklch(34.96% 0.107 11.3)
XYZ	xyz(6.3266, 3.7913, 2.7810)
Luminance	0.0379 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661B2C #1B6655

analogous

#661B51 #661B2C #662F1B

triadic

#661B2C #2C661B #1B2C66

tetradic

#661B2C #51661B #1B6655 #2F1B66

square

#661B2C #51661B #1B6655 #2F1B66

split-complementary

#661B2C #1B662F #1B5166

monochromatic

#18060A #360E17 #661B2C #962841 #C73556

Accessibility & contrast

On white

11.95

#661B2C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#661B2C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661B2C

11.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661B2C	#FFFFFF	#000000	##FFFFFF
##661B2C	1.00	11.95	1.76	11.95
#FFFFFF	11.95	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D2D2C

Deuteranopia (green-blind)

#413C2A

Tritanopia (blue-blind)

#700B22

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #661b2c;
/* rgb */ color: rgb(102, 27, 44);
/* oklch */ color: oklch(35.0% 0.107 11.3);

Tailwind

colors: {
  custom: {
    50: '#965d64',
    500: '#661b2c',
    950: '#000000',
  },
}

SCSS

$custom: #661b2c;
$custom-light: #965d64;
$custom-dark: #000000;

JSON

{
  "hex": "#661b2c",
  "rgb": {
    "r": 102,
    "g": 27,
    "b": 44
  },
  "hsl": {
    "h": 346.4,
    "s": 58.14,
    "l": 25.294
  },
  "oklch": {
    "l": 0.34956,
    "c": 0.107,
    "h": 11.3
  },
  "luminance": 0.0379
}

Semantic roles & 50–950 ramp

primary

#661B2C

secondary

#419B87

accent

#E1BE46

background

#F9F5F6

surface

#F2E9EB

border

#CCC5C6

text

#0E0405

muted

#7E797A

Preview Lab

Preview with #661B2C

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

Preview Lab → · Contrast checker → · Palette generator →