#661B16#661B16

#661B16 is a dark, moderate red. Relative luminance 0.037; OKLCH L 34.5% C 0.108 H 28.0°. Best body text is #FFFFFF at 12.11:1 contrast (WCAG AA passes).

Color values

HEX	#661B16
RGB	rgb(102, 27, 22)
HSL	hsl(4, 65%, 24%)
HSV	hsv(4, 78%, 40%)
CMYK	cmyk(0%, 73.5%, 78.4%, 60%)
CIE-LAB	lab(22.54, 33.15, 22.57)
CIE-LCH	lch(22.54, 40.10, 34.25°)
OKLab	oklab(34.5% 0.0955 0.0508)
OKLCH	oklch(34.5% 0.108 28)
XYZ	xyz(6.0169, 3.6675, 1.1500)
Luminance	0.0367 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661B16 #166166

analogous

#661639 #661B16 #664316

triadic

#661B16 #16661B #1B1666

tetradic

#661B16 #396616 #166166 #431666

square

#661B16 #396616 #166166 #431666

split-complementary

#661B16 #166643 #163966

monochromatic

#190705 #340E0B #661B16 #982821 #CB362C

Accessibility & contrast

On white

12.11

#661B16 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#661B16 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661B16

12.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661B16	#FFFFFF	#000000	##FFFFFF
##661B16	1.00	12.11	1.73	12.11
#FFFFFF	12.11	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#302B15

Deuteranopia (green-blind)

#433C13

Tritanopia (blue-blind)

#71031B

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #661b16;
/* rgb */ color: rgb(102, 27, 22);
/* oklch */ color: oklch(34.5% 0.108 28.0);

Tailwind

colors: {
  custom: {
    50: '#985d53',
    500: '#661b16',
    950: '#000000',
  },
}

SCSS

$custom: #661b16;
$custom-light: #985d53;
$custom-dark: #000000;

JSON

{
  "hex": "#661b16",
  "rgb": {
    "r": 102,
    "g": 27,
    "b": 22
  },
  "hsl": {
    "h": 3.75,
    "s": 64.516,
    "l": 24.314
  },
  "oklch": {
    "l": 0.34497,
    "c": 0.10816,
    "h": 28
  },
  "luminance": 0.03667
}

Semantic roles & 50–950 ramp

primary

#661B16

secondary

#3B979D

accent

#DDE840

background

#FAF5F4

surface

#F3E9E7

border

#CDC5C3

text

#0F0402

muted

#7F7978

Preview Lab

Preview with #661B16

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

Preview Lab → · Contrast checker → · Palette generator →