#66110F#66110F

#66110F is a dark, moderate red. Relative luminance 0.033; OKLCH L 33.4% C 0.119 H 27.5°. Best body text is #FFFFFF at 12.71:1 contrast (WCAG AA passes).

Color values

HEX	#66110F
RGB	rgb(102, 17, 15)
HSL	hsl(1, 74%, 23%)
HSV	hsv(1, 85%, 40%)
CMYK	cmyk(0%, 83.3%, 85.3%, 60%)
CIE-LAB	lab(21.06, 36.73, 25.19)
CIE-LCH	lch(21.06, 44.54, 34.44°)
OKLab	oklab(33.37% 0.1052 0.0547)
OKLCH	oklch(33.37% 0.119 27.5)
XYZ	xyz(5.7669, 3.2611, 0.7777)
Luminance	0.0326 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66110F #0F6466

analogous

#660F39 #66110F #663C0F

triadic

#66110F #0F6611 #110F66

tetradic

#66110F #39660F #0F6466 #3C0F66

square

#66110F #39660F #0F6466 #3C0F66

split-complementary

#66110F #0F663C #0F3966

monochromatic

#1B0404 #310807 #66110F #9B1A17 #D1231F

Accessibility & contrast

On white

12.71

#66110F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#66110F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66110F

12.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66110F	#FFFFFF	#000000	##FFFFFF
##66110F	1.00	12.71	1.65	12.71
#FFFFFF	12.71	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C270E

Deuteranopia (green-blind)

#41390B

Tritanopia (blue-blind)

#710012

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #66110f;
/* rgb */ color: rgb(102, 17, 15);
/* oklch */ color: oklch(33.4% 0.119 27.5);

Tailwind

colors: {
  custom: {
    50: '#99584e',
    500: '#66110f',
    950: '#000000',
  },
}

SCSS

$custom: #66110f;
$custom-light: #99584e;
$custom-dark: #000000;

JSON

{
  "hex": "#66110f",
  "rgb": {
    "r": 102,
    "g": 17,
    "b": 15
  },
  "hsl": {
    "h": 1.379,
    "s": 74.359,
    "l": 22.941
  },
  "oklch": {
    "l": 0.33366,
    "c": 0.11852,
    "h": 27.5
  },
  "luminance": 0.0326
}

Semantic roles & 50–950 ramp

primary

#66110F

secondary

#329C9F

accent

#EDF137

background

#FAF5F4

surface

#F4E9E7

border

#CEC5C3

text

#0F0401

muted

#7F7977

Preview Lab

Preview with #66110F

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

Preview Lab → · Contrast checker → · Palette generator →