#661B2D#661B2D

#661B2D is a dark, moderate red. Relative luminance 0.038; OKLCH L 35.0% C 0.107 H 10.4°. Best body text is #FFFFFF at 11.93:1 contrast (WCAG AA passes).

Color values

HEX	#661B2D
RGB	rgb(102, 27, 45)
HSL	hsl(346, 58%, 25%)
HSV	hsv(346, 74%, 40%)
CMYK	cmyk(0%, 73.5%, 55.9%, 60%)
CIE-LAB	lab(23.00, 34.75, 7.64)
CIE-LCH	lch(23.00, 35.58, 12.39°)
OKLab	oklab(34.98% 0.1054 0.0194)
OKLCH	oklch(34.98% 0.107 10.4)
XYZ	xyz(6.3456, 3.7990, 2.8812)
Luminance	0.0380 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661B2D #1B6654

analogous

#661B52 #661B2D #662E1B

triadic

#661B2D #2D661B #1B2D66

tetradic

#661B2D #52661B #1B6654 #2E1B66

square

#661B2D #52661B #1B6654 #2E1B66

split-complementary

#661B2D #1B662E #1B5266

monochromatic

#18060B #360E18 #661B2D #962842 #C73558

Accessibility & contrast

On white

11.93

#661B2D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#661B2D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661B2D

11.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661B2D	#FFFFFF	#000000	##FFFFFF
##661B2D	1.00	11.93	1.76	11.93
#FFFFFF	11.93	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D2D2D

Deuteranopia (green-blind)

#413C2B

Tritanopia (blue-blind)

#700C22

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #661b2d;
/* rgb */ color: rgb(102, 27, 45);
/* oklch */ color: oklch(35.0% 0.107 10.4);

Tailwind

colors: {
  custom: {
    50: '#965d65',
    500: '#661b2d',
    950: '#000000',
  },
}

SCSS

$custom: #661b2d;
$custom-light: #965d65;
$custom-dark: #000000;

JSON

{
  "hex": "#661b2d",
  "rgb": {
    "r": 102,
    "g": 27,
    "b": 45
  },
  "hsl": {
    "h": 345.6,
    "s": 58.14,
    "l": 25.294
  },
  "oklch": {
    "l": 0.34984,
    "c": 0.10714,
    "h": 10.4
  },
  "luminance": 0.03798
}

Semantic roles & 50–950 ramp

primary

#661B2D

secondary

#419B86

accent

#E1BC46

background

#F9F5F6

surface

#F2E9EB

border

#CCC5C6

text

#0E0405

muted

#7E797A

Preview Lab

Preview with #661B2D

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

Preview Lab → · Contrast checker → · Palette generator →