#66383E#66383E

#66383E is a dark, moderate red. Relative luminance 0.060; OKLCH L 40.0% C 0.066 H 12.1°. Best body text is #FFFFFF at 9.54:1 contrast (WCAG AA passes).

Color values

HEX	#66383E
RGB	rgb(102, 56, 62)
HSL	hsl(352, 29%, 31%)
HSV	hsv(352, 45%, 40%)
CMYK	cmyk(0%, 45.1%, 39.2%, 60%)
CIE-LAB	lab(29.42, 21.18, 5.25)
CIE-LCH	lch(29.42, 21.82, 13.93°)
OKLab	oklab(39.97% 0.0642 0.0138)
OKLCH	oklch(39.97% 0.066 12.1)
XYZ	xyz(7.7635, 6.0016, 5.3060)
Luminance	0.0600 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66383E #386660

analogous

#663855 #66383E #664938

triadic

#66383E #3E6638 #383E66

tetradic

#66383E #556638 #386660 #493866

square

#66383E #556638 #386660 #493866

split-complementary

#66383E #386649 #385566

monochromatic

#170D0E #3E2226 #66383E #8E4E56 #AE6B73

Accessibility & contrast

On white

9.54

#66383E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#66383E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66383E

9.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66383E	#FFFFFF	#000000	##FFFFFF
##66383E	1.00	9.54	2.20	9.54
#FFFFFF	9.54	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#40403E

Deuteranopia (green-blind)

#4C493D

Tritanopia (blue-blind)

#6E333A

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #66383e;
/* rgb */ color: rgb(102, 56, 62);
/* oklch */ color: oklch(40.0% 0.066 12.1);

Tailwind

colors: {
  custom: {
    50: '#936f73',
    500: '#66383e',
    950: '#000000',
  },
}

SCSS

$custom: #66383e;
$custom-light: #936f73;
$custom-dark: #000000;

JSON

{
  "hex": "#66383e",
  "rgb": {
    "r": 102,
    "g": 56,
    "b": 62
  },
  "hsl": {
    "h": 352.174,
    "s": 29.114,
    "l": 30.98
  },
  "oklch": {
    "l": 0.39968,
    "c": 0.06567,
    "h": 12.1
  },
  "luminance": 0.06001
}

Semantic roles & 50–950 ramp

primary

#66383E

secondary

#639690

accent

#C5B862

background

#F9F6F6

surface

#F2ECEC

border

#CCC7C7

text

#0D0708

muted

#7E7A7B

Preview Lab

Preview with #66383E

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

Preview Lab → · Contrast checker → · Palette generator →