#661B29#661B29

#661B29 is a dark, moderate red. Relative luminance 0.038; OKLCH L 34.9% C 0.107 H 13.9°. Best body text is #FFFFFF at 11.97:1 contrast (WCAG AA passes).

Color values

HEX	#661B29
RGB	rgb(102, 27, 41)
HSL	hsl(349, 58%, 25%)
HSV	hsv(349, 74%, 40%)
CMYK	cmyk(0%, 73.5%, 59.8%, 60%)
CIE-LAB	lab(22.89, 34.40, 10.26)
CIE-LCH	lch(22.89, 35.90, 16.60°)
OKLab	oklab(34.88% 0.1036 0.0256)
OKLCH	oklch(34.88% 0.107 13.9)
XYZ	xyz(6.2722, 3.7696, 2.4947)
Luminance	0.0377 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661B29 #1B6658

analogous

#661B4E #661B29 #66321B

triadic

#661B29 #29661B #1B2966

tetradic

#661B29 #4E661B #1B6658 #321B66

square

#661B29 #4E661B #1B6658 #321B66

split-complementary

#661B29 #1B6632 #1B4E66

monochromatic

#18060A #360E16 #661B29 #96283C #C73550

Accessibility & contrast

On white

11.97

#661B29 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#661B29 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661B29

11.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661B29	#FFFFFF	#000000	##FFFFFF
##661B29	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)

#2E2D29

Deuteranopia (green-blind)

#413C27

Tritanopia (blue-blind)

#700A21

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #661b29;
/* rgb */ color: rgb(102, 27, 41);
/* oklch */ color: oklch(34.9% 0.107 13.9);

Tailwind

colors: {
  custom: {
    50: '#975d62',
    500: '#661b29',
    950: '#000000',
  },
}

SCSS

$custom: #661b29;
$custom-light: #975d62;
$custom-dark: #000000;

JSON

{
  "hex": "#661b29",
  "rgb": {
    "r": 102,
    "g": 27,
    "b": 41
  },
  "hsl": {
    "h": 348.8,
    "s": 58.14,
    "l": 25.294
  },
  "oklch": {
    "l": 0.34876,
    "c": 0.10672,
    "h": 13.9
  },
  "luminance": 0.03769
}

Semantic roles & 50–950 ramp

primary

#661B29

secondary

#419B8B

accent

#E1C446

background

#F9F5F5

surface

#F2E9EA

border

#CCC5C6

text

#0E0405

muted

#7E7979

Preview Lab

Preview with #661B29

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

Preview Lab → · Contrast checker → · Palette generator →