#661D11#661D11

#661D11 is a dark, moderate red. Relative luminance 0.037; OKLCH L 34.7% C 0.107 H 31.9°. Best body text is #FFFFFF at 12.01:1 contrast (WCAG AA passes).

Color values

HEX	#661D11
RGB	rgb(102, 29, 17)
HSL	hsl(8, 71%, 23%)
HSV	hsv(8, 83%, 40%)
CMYK	cmyk(0%, 71.6%, 83.3%, 60%)
CIE-LAB	lab(22.81, 32.03, 25.94)
CIE-LCH	lch(22.81, 41.22, 39.00°)
OKLab	oklab(34.68% 0.0909 0.0566)
OKLCH	oklch(34.68% 0.107 31.9)
XYZ	xyz(6.0207, 3.7449, 0.9360)
Luminance	0.0374 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661D11 #115A66

analogous

#66112F #661D11 #664711

triadic

#661D11 #11661D #1D1166

tetradic

#661D11 #2F6611 #115A66 #471166

square

#661D11 #2F6611 #115A66 #471166

split-complementary

#661D11 #116647 #112F66

monochromatic

#1A0704 #320E08 #661D11 #9A2C1A #CF3B22

Accessibility & contrast

On white

12.01

#661D11 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#661D11 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661D11

12.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661D11	#FFFFFF	#000000	##FFFFFF
##661D11	1.00	12.01	1.75	12.01
#FFFFFF	12.01	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#322C0F

Deuteranopia (green-blind)

#443C0E

Tritanopia (blue-blind)

#71061B

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #661d11;
/* rgb */ color: rgb(102, 29, 17);
/* oklch */ color: oklch(34.7% 0.107 31.9);

Tailwind

colors: {
  custom: {
    50: '#995e50',
    500: '#661d11',
    950: '#000000',
  },
}

SCSS

$custom: #661d11;
$custom-light: #995e50;
$custom-dark: #000000;

JSON

{
  "hex": "#661d11",
  "rgb": {
    "r": 102,
    "g": 29,
    "b": 17
  },
  "hsl": {
    "h": 8.471,
    "s": 71.429,
    "l": 23.333
  },
  "oklch": {
    "l": 0.3468,
    "c": 0.10709,
    "h": 31.9
  },
  "luminance": 0.03744
}

Semantic roles & 50–950 ramp

primary

#661D11

secondary

#358F9E

accent

#D5EE3A

background

#FAF5F4

surface

#F3E9E7

border

#CDC5C3

text

#0F0402

muted

#7F7978

Preview Lab

Preview with #661D11

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

Preview Lab → · Contrast checker → · Palette generator →