#661B11#661B11

#661B11 is a dark, moderate red. Relative luminance 0.036; OKLCH L 34.4% C 0.109 H 30.8°. Best body text is #FFFFFF at 12.14:1 contrast (WCAG AA passes).

Color values

HEX	#661B11
RGB	rgb(102, 27, 17)
HSL	hsl(7, 71%, 23%)
HSV	hsv(7, 83%, 40%)
CMYK	cmyk(0%, 73.5%, 83.3%, 60%)
CIE-LAB	lab(22.48, 32.93, 25.59)
CIE-LCH	lch(22.48, 41.71, 37.85°)
OKLab	oklab(34.43% 0.0937 0.0559)
OKLCH	oklch(34.43% 0.109 30.8)
XYZ	xyz(5.9733, 3.6500, 0.9202)
Luminance	0.0365 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661B11 #115C66

analogous

#661131 #661B11 #664511

triadic

#661B11 #11661B #1B1166

tetradic

#661B11 #316611 #115C66 #451166

square

#661B11 #316611 #115C66 #451166

split-complementary

#661B11 #116645 #113166

monochromatic

#1A0704 #320D08 #661B11 #9A291A #CF3722

Accessibility & contrast

On white

12.14

#661B11 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#661B11 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661B11

12.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661B11	#FFFFFF	#000000	##FFFFFF
##661B11	1.00	12.14	1.73	12.14
#FFFFFF	12.14	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#312B0F

Deuteranopia (green-blind)

#433C0E

Tritanopia (blue-blind)

#710219

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #661b11;
/* rgb */ color: rgb(102, 27, 17);
/* oklch */ color: oklch(34.4% 0.109 30.8);

Tailwind

colors: {
  custom: {
    50: '#995d50',
    500: '#661b11',
    950: '#000000',
  },
}

SCSS

$custom: #661b11;
$custom-light: #995d50;
$custom-dark: #000000;

JSON

{
  "hex": "#661b11",
  "rgb": {
    "r": 102,
    "g": 27,
    "b": 17
  },
  "hsl": {
    "h": 7.059,
    "s": 71.429,
    "l": 23.333
  },
  "oklch": {
    "l": 0.34432,
    "c": 0.10911,
    "h": 30.8
  },
  "luminance": 0.03649
}

Semantic roles & 50–950 ramp

primary

#661B11

secondary

#35929E

accent

#D9EE3A

background

#FAF5F4

surface

#F3E9E7

border

#CDC5C3

text

#0F0402

muted

#7F7978

Preview Lab

Preview with #661B11

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

Preview Lab → · Contrast checker → · Palette generator →