#661C29#661C29

#661C29 is a dark, moderate red. Relative luminance 0.038; OKLCH L 35.0% C 0.105 H 14.3°. Best body text is #FFFFFF at 11.91:1 contrast (WCAG AA passes).

Color values

HEX	#661C29
RGB	rgb(102, 28, 41)
HSL	hsl(349, 57%, 25%)
HSV	hsv(349, 73%, 40%)
CMYK	cmyk(0%, 72.5%, 59.8%, 60%)
CIE-LAB	lab(23.05, 33.97, 10.47)
CIE-LCH	lch(23.05, 35.54, 17.13°)
OKLab	oklab(34.99% 0.1022 0.0261)
OKLCH	oklch(34.99% 0.105 14.3)
XYZ	xyz(6.2956, 3.8162, 2.5025)
Luminance	0.0382 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661C29 #1C6659

analogous

#661C4E #661C29 #66341C

triadic

#661C29 #29661C #1C2966

tetradic

#661C29 #4E661C #1C6659 #341C66

square

#661C29 #4E661C #1C6659 #341C66

split-complementary

#661C29 #1C6634 #1C4E66

monochromatic

#18070A #360F16 #661C29 #96293C #C63650

Accessibility & contrast

On white

11.91

#661C29 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#661C29 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661C29

11.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661C29	#FFFFFF	#000000	##FFFFFF
##661C29	1.00	11.91	1.76	11.91
#FFFFFF	11.91	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F2D29

Deuteranopia (green-blind)

#423D27

Tritanopia (blue-blind)

#700C21

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #661c29;
/* rgb */ color: rgb(102, 28, 41);
/* oklch */ color: oklch(35.0% 0.105 14.3);

Tailwind

colors: {
  custom: {
    50: '#975e62',
    500: '#661c29',
    950: '#000000',
  },
}

SCSS

$custom: #661c29;
$custom-light: #975e62;
$custom-dark: #000000;

JSON

{
  "hex": "#661c29",
  "rgb": {
    "r": 102,
    "g": 28,
    "b": 41
  },
  "hsl": {
    "h": 349.459,
    "s": 56.923,
    "l": 25.49
  },
  "oklch": {
    "l": 0.34995,
    "c": 0.10549,
    "h": 14.3
  },
  "luminance": 0.03815
}

Semantic roles & 50–950 ramp

primary

#661C29

secondary

#439B8C

accent

#E0C548

background

#F9F5F5

surface

#F2E9EA

border

#CCC5C6

text

#0E0505

muted

#7E7979

Preview Lab

Preview with #661C29

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

Preview Lab → · Contrast checker → · Palette generator →