#661B0E#661B0E

#661B0E is a dark, moderate red. Relative luminance 0.036; OKLCH L 34.4% C 0.110 H 32.3°. Best body text is #FFFFFF at 12.15:1 contrast (WCAG AA passes).

Color values

HEX	#661B0E
RGB	rgb(102, 27, 14)
HSL	hsl(9, 76%, 23%)
HSV	hsv(9, 86%, 40%)
CMYK	cmyk(0%, 73.5%, 86.3%, 60%)
CIE-LAB	lab(22.45, 32.82, 27.19)
CIE-LCH	lch(22.45, 42.62, 39.64°)
OKLab	oklab(34.4% 0.0927 0.0586)
OKLCH	oklch(34.4% 0.11 32.3)
XYZ	xyz(5.9514, 3.6413, 0.8048)
Luminance	0.0364 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661B0E #0E5966

analogous

#660E2D #661B0E #66470E

triadic

#661B0E #0E661B #1B0E66

tetradic

#661B0E #2D660E #0E5966 #470E66

square

#661B0E #2D660E #0E5966 #470E66

split-complementary

#661B0E #0E6647 #0E2D66

monochromatic

#1B0704 #300D07 #661B0E #9C2915 #D2371D

Accessibility & contrast

On white

12.15

#661B0E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#661B0E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661B0E

12.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661B0E	#FFFFFF	#000000	##FFFFFF
##661B0E	1.00	12.15	1.73	12.15
#FFFFFF	12.15	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#312B0C

Deuteranopia (green-blind)

#443C0A

Tritanopia (blue-blind)

#710119

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #661b0e;
/* rgb */ color: rgb(102, 27, 14);
/* oklch */ color: oklch(34.4% 0.110 32.3);

Tailwind

colors: {
  custom: {
    50: '#995d4e',
    500: '#661b0e',
    950: '#000000',
  },
}

SCSS

$custom: #661b0e;
$custom-light: #995d4e;
$custom-dark: #000000;

JSON

{
  "hex": "#661b0e",
  "rgb": {
    "r": 102,
    "g": 27,
    "b": 14
  },
  "hsl": {
    "h": 8.864,
    "s": 75.862,
    "l": 22.745
  },
  "oklch": {
    "l": 0.34399,
    "c": 0.10968,
    "h": 32.3
  },
  "luminance": 0.0364
}

Semantic roles & 50–950 ramp

primary

#661B0E

secondary

#318F9F

accent

#D7F235

background

#FAF5F4

surface

#F4E9E7

border

#CEC5C3

text

#0F0401

muted

#7F7977

Preview Lab

Preview with #661B0E

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

Preview Lab → · Contrast checker → · Palette generator →