#661C22#661C22

#661C22 is a dark, moderate red. Relative luminance 0.038; OKLCH L 34.8% C 0.106 H 20.1°. Best body text is #FFFFFF at 11.97:1 contrast (WCAG AA passes).

Color values

HEX	#661C22
RGB	rgb(102, 28, 34)
HSL	hsl(355, 57%, 25%)
HSV	hsv(355, 73%, 40%)
CMYK	cmyk(0%, 72.5%, 66.7%, 60%)
CIE-LAB	lab(22.90, 33.42, 15.06)
CIE-LCH	lch(22.90, 36.66, 24.25°)
OKLab	oklab(34.83% 0.0991 0.0362)
OKLCH	oklch(34.83% 0.106 20.1)
XYZ	xyz(6.1841, 3.7717, 1.9154)
Luminance	0.0377 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661C22 #1C6660

analogous

#661C47 #661C22 #663B1C

triadic

#661C22 #22661C #1C2266

tetradic

#661C22 #47661C #1C6660 #3B1C66

square

#661C22 #47661C #1C6660 #3B1C66

split-complementary

#661C22 #1C663B #1C4766

monochromatic

#180708 #360F12 #661C22 #962932 #C63642

Accessibility & contrast

On white

11.97

#661C22 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#661C22 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661C22

11.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661C22	#FFFFFF	#000000	##FFFFFF
##661C22	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)

#302D22

Deuteranopia (green-blind)

#423C20

Tritanopia (blue-blind)

#70091F

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #661c22;
/* rgb */ color: rgb(102, 28, 34);
/* oklch */ color: oklch(34.8% 0.106 20.1);

Tailwind

colors: {
  custom: {
    50: '#975e5c',
    500: '#661c22',
    950: '#000000',
  },
}

SCSS

$custom: #661c22;
$custom-light: #975e5c;
$custom-dark: #000000;

JSON

{
  "hex": "#661c22",
  "rgb": {
    "r": 102,
    "g": 28,
    "b": 34
  },
  "hsl": {
    "h": 355.135,
    "s": 56.923,
    "l": 25.49
  },
  "oklch": {
    "l": 0.34831,
    "c": 0.10553,
    "h": 20.1
  },
  "luminance": 0.03771
}

Semantic roles & 50–950 ramp

primary

#661C22

secondary

#439B94

accent

#E0D448

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0404

muted

#7E7979

Preview Lab

Preview with #661C22

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

Preview Lab → · Contrast checker → · Palette generator →