#661B19#661B19

#661B19 is a dark, moderate red. Relative luminance 0.037; OKLCH L 34.5% C 0.108 H 26.1°. Best body text is #FFFFFF at 12.10:1 contrast (WCAG AA passes).

Color values

HEX	#661B19
RGB	rgb(102, 27, 25)
HSL	hsl(2, 61%, 25%)
HSV	hsv(2, 75%, 40%)
CMYK	cmyk(0%, 73.5%, 75.5%, 60%)
CIE-LAB	lab(22.58, 33.31, 20.68)
CIE-LCH	lch(22.58, 39.20, 31.84°)
OKLab	oklab(34.54% 0.0967 0.0473)
OKLCH	oklch(34.54% 0.108 26.1)
XYZ	xyz(6.0476, 3.6797, 1.3113)
Luminance	0.0368 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661B19 #196466

analogous

#66193E #661B19 #664119

triadic

#661B19 #19661B #1B1966

tetradic

#661B19 #3E6619 #196466 #411966

square

#661B19 #3E6619 #196466 #411966

split-complementary

#661B19 #196641 #193E66

monochromatic

#190706 #350E0D #661B19 #972825 #C83531

Accessibility & contrast

On white

12.10

#661B19 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#661B19 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661B19

12.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661B19	#FFFFFF	#000000	##FFFFFF
##661B19	1.00	12.10	1.74	12.10
#FFFFFF	12.10	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#302C18

Deuteranopia (green-blind)

#433C17

Tritanopia (blue-blind)

#71041B

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #661b19;
/* rgb */ color: rgb(102, 27, 25);
/* oklch */ color: oklch(34.5% 0.108 26.1);

Tailwind

colors: {
  custom: {
    50: '#985d55',
    500: '#661b19',
    950: '#000000',
  },
}

SCSS

$custom: #661b19;
$custom-light: #985d55;
$custom-dark: #000000;

JSON

{
  "hex": "#661b19",
  "rgb": {
    "r": 102,
    "g": 27,
    "b": 25
  },
  "hsl": {
    "h": 1.558,
    "s": 60.63,
    "l": 24.902
  },
  "oklch": {
    "l": 0.34543,
    "c": 0.10767,
    "h": 26.1
  },
  "luminance": 0.03679
}

Semantic roles & 50–950 ramp

primary

#661B19

secondary

#3F999C

accent

#E0E444

background

#FAF5F5

surface

#F3E9E8

border

#CDC5C4

text

#0F0403

muted

#7F7978

Preview Lab

Preview with #661B19

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

Preview Lab → · Contrast checker → · Palette generator →