#66170F#66170F

#66170F is a dark, moderate red. Relative luminance 0.035; OKLCH L 34.0% C 0.113 H 29.8°. Best body text is #FFFFFF at 12.39:1 contrast (WCAG AA passes).

Color values

HEX	#66170F
RGB	rgb(102, 23, 15)
HSL	hsl(6, 74%, 23%)
HSV	hsv(6, 85%, 40%)
CMYK	cmyk(0%, 77.5%, 85.3%, 60%)
CIE-LAB	lab(21.85, 34.54, 26.04)
CIE-LCH	lch(21.85, 43.25, 37.01°)
OKLab	oklab(33.95% 0.0983 0.0564)
OKLCH	oklch(33.95% 0.113 29.8)
XYZ	xyz(5.8728, 3.4730, 0.8130)
Luminance	0.0347 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66170F #0F5E66

analogous

#660F32 #66170F #66420F

triadic

#66170F #0F6617 #170F66

tetradic

#66170F #32660F #0F5E66 #420F66

square

#66170F #32660F #0F5E66 #420F66

split-complementary

#66170F #0F6642 #0F3266

monochromatic

#1B0604 #310B07 #66170F #9B2317 #D12F1F

Accessibility & contrast

On white

12.39

#66170F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#66170F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66170F

12.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66170F	#FFFFFF	#000000	##FFFFFF
##66170F	1.00	12.39	1.69	12.39
#FFFFFF	12.39	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F290D

Deuteranopia (green-blind)

#423B0B

Tritanopia (blue-blind)

#710016

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #66170f;
/* rgb */ color: rgb(102, 23, 15);
/* oklch */ color: oklch(34.0% 0.113 29.8);

Tailwind

colors: {
  custom: {
    50: '#995b4e',
    500: '#66170f',
    950: '#000000',
  },
}

SCSS

$custom: #66170f;
$custom-light: #995b4e;
$custom-dark: #000000;

JSON

{
  "hex": "#66170f",
  "rgb": {
    "r": 102,
    "g": 23,
    "b": 15
  },
  "hsl": {
    "h": 5.517,
    "s": 74.359,
    "l": 22.941
  },
  "oklch": {
    "l": 0.33952,
    "c": 0.11331,
    "h": 29.8
  },
  "luminance": 0.03472
}

Semantic roles & 50–950 ramp

primary

#66170F

secondary

#32959F

accent

#E0F137

background

#FAF5F4

surface

#F4E9E7

border

#CEC5C3

text

#0F0401

muted

#7F7977

Preview Lab

Preview with #66170F

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

Preview Lab → · Contrast checker → · Palette generator →