#661C17#661C17

#661C17 is a dark, moderate red. Relative luminance 0.037; OKLCH L 34.6% C 0.107 H 27.9°. Best body text is #FFFFFF at 12.05:1 contrast (WCAG AA passes).

Color values

HEX	#661C17
RGB	rgb(102, 28, 23)
HSL	hsl(4, 63%, 25%)
HSV	hsv(4, 77%, 40%)
CMYK	cmyk(0%, 72.5%, 77.5%, 60%)
CIE-LAB	lab(22.72, 32.76, 22.13)
CIE-LCH	lch(22.72, 39.53, 34.04°)
OKLab	oklab(34.63% 0.0945 0.05)
OKLCH	oklch(34.63% 0.107 27.9)
XYZ	xyz(6.0501, 3.7180, 1.2095)
Luminance	0.0372 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661C17 #176166

analogous

#66173A #661C17 #664317

triadic

#661C17 #17661C #1C1766

tetradic

#661C17 #3A6617 #176166 #431766

square

#661C17 #3A6617 #176166 #431766

split-complementary

#661C17 #176643 #173A66

monochromatic

#190706 #340E0C #661C17 #982A22 #CA372E

Accessibility & contrast

On white

12.05

#661C17 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#661C17 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661C17

12.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661C17	#FFFFFF	#000000	##FFFFFF
##661C17	1.00	12.05	1.74	12.05
#FFFFFF	12.05	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#312C16

Deuteranopia (green-blind)

#433C14

Tritanopia (blue-blind)

#71051B

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #661c17;
/* rgb */ color: rgb(102, 28, 23);
/* oklch */ color: oklch(34.6% 0.107 27.9);

Tailwind

colors: {
  custom: {
    50: '#985d54',
    500: '#661c17',
    950: '#000000',
  },
}

SCSS

$custom: #661c17;
$custom-light: #985d54;
$custom-dark: #000000;

JSON

{
  "hex": "#661c17",
  "rgb": {
    "r": 102,
    "g": 28,
    "b": 23
  },
  "hsl": {
    "h": 3.797,
    "s": 63.2,
    "l": 24.51
  },
  "oklch": {
    "l": 0.34633,
    "c": 0.10695,
    "h": 27.9
  },
  "luminance": 0.03717
}

Semantic roles & 50–950 ramp

primary

#661C17

secondary

#3C969C

accent

#DCE642

background

#FAF5F4

surface

#F3E9E7

border

#CDC5C3

text

#0F0402

muted

#7F7978

Preview Lab

Preview with #661C17

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

Preview Lab → · Contrast checker → · Palette generator →