#661C0F#661C0F

#661C0F is a dark, moderate red. Relative luminance 0.037; OKLCH L 34.5% C 0.108 H 32.3°. Best body text is #FFFFFF at 12.08:1 contrast (WCAG AA passes).

Color values

HEX	#661C0F
RGB	rgb(102, 28, 15)
HSL	hsl(9, 74%, 23%)
HSV	hsv(9, 85%, 40%)
CMYK	cmyk(0%, 72.5%, 85.3%, 60%)
CIE-LAB	lab(22.62, 32.41, 26.85)
CIE-LCH	lch(22.62, 42.09, 39.64°)
OKLab	oklab(34.53% 0.0917 0.0581)
OKLCH	oklch(34.53% 0.109 32.3)
XYZ	xyz(5.9817, 3.6907, 0.8493)
Luminance	0.0369 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661C0F #0F5966

analogous

#660F2D #661C0F #66480F

triadic

#661C0F #0F661C #1C0F66

tetradic

#661C0F #2D660F #0F5966 #480F66

square

#661C0F #2D660F #0F5966 #480F66

split-complementary

#661C0F #0F6648 #0F2D66

monochromatic

#1B0704 #310D07 #661C0F #9B2B17 #D1391F

Accessibility & contrast

On white

12.08

#661C0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#661C0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661C0F

12.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661C0F	#FFFFFF	#000000	##FFFFFF
##661C0F	1.00	12.08	1.74	12.08
#FFFFFF	12.08	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#322C0D

Deuteranopia (green-blind)

#443C0C

Tritanopia (blue-blind)

#71041A

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #661c0f;
/* rgb */ color: rgb(102, 28, 15);
/* oklch */ color: oklch(34.5% 0.108 32.3);

Tailwind

colors: {
  custom: {
    50: '#995d4e',
    500: '#661c0f',
    950: '#000000',
  },
}

SCSS

$custom: #661c0f;
$custom-light: #995d4e;
$custom-dark: #000000;

JSON

{
  "hex": "#661c0f",
  "rgb": {
    "r": 102,
    "g": 28,
    "b": 15
  },
  "hsl": {
    "h": 8.966,
    "s": 74.359,
    "l": 22.941
  },
  "oklch": {
    "l": 0.34532,
    "c": 0.1085,
    "h": 32.3
  },
  "luminance": 0.0369
}

Semantic roles & 50–950 ramp

primary

#661C0F

secondary

#328F9F

accent

#D5F137

background

#FAF5F4

surface

#F3E9E7

border

#CDC5C3

text

#0F0401

muted

#7F7977

Preview Lab

Preview with #661C0F

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

Preview Lab → · Contrast checker → · Palette generator →