#661B22#661B22

#661B22 is a dark, moderate red. Relative luminance 0.037; OKLCH L 34.7% C 0.107 H 19.6°. Best body text is #FFFFFF at 12.04:1 contrast (WCAG AA passes).

Color values

HEX	#661B22
RGB	rgb(102, 27, 34)
HSL	hsl(354, 58%, 25%)
HSV	hsv(354, 74%, 40%)
CMYK	cmyk(0%, 73.5%, 66.7%, 60%)
CIE-LAB	lab(22.74, 33.86, 14.85)
CIE-LCH	lch(22.74, 36.98, 23.68°)
OKLab	oklab(34.71% 0.1005 0.0357)
OKLCH	oklch(34.71% 0.107 19.6)
XYZ	xyz(6.1608, 3.7250, 1.9077)
Luminance	0.0372 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661B22 #1B665F

analogous

#661B47 #661B22 #66391B

triadic

#661B22 #22661B #1B2266

tetradic

#661B22 #47661B #1B665F #391B66

square

#661B22 #47661B #1B665F #391B66

split-complementary

#661B22 #1B6639 #1B4766

monochromatic

#180608 #360E12 #661B22 #962832 #C73542

Accessibility & contrast

On white

12.04

#661B22 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#661B22 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661B22

12.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661B22	#FFFFFF	#000000	##FFFFFF
##661B22	1.00	12.04	1.74	12.04
#FFFFFF	12.04	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F2C22

Deuteranopia (green-blind)

#423C20

Tritanopia (blue-blind)

#70071E

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #661b22;
/* rgb */ color: rgb(102, 27, 34);
/* oklch */ color: oklch(34.7% 0.107 19.6);

Tailwind

colors: {
  custom: {
    50: '#975d5c',
    500: '#661b22',
    950: '#000000',
  },
}

SCSS

$custom: #661b22;
$custom-light: #975d5c;
$custom-dark: #000000;

JSON

{
  "hex": "#661b22",
  "rgb": {
    "r": 102,
    "g": 27,
    "b": 34
  },
  "hsl": {
    "h": 354.4,
    "s": 58.14,
    "l": 25.294
  },
  "oklch": {
    "l": 0.34711,
    "c": 0.10668,
    "h": 19.6
  },
  "luminance": 0.03724
}

Semantic roles & 50–950 ramp

primary

#661B22

secondary

#419B93

accent

#E1D346

background

#F9F5F5

surface

#F2E9E9

border

#CCC5C5

text

#0E0404

muted

#7E7979

Preview Lab

Preview with #661B22

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

Preview Lab → · Contrast checker → · Palette generator →