#66504C#66504C

#66504C is a mid, muted red. Relative luminance 0.091; OKLCH L 45.3% C 0.030 H 30.2°. Best body text is #FFFFFF at 7.46:1 contrast (WCAG AA passes).

Color values

HEX	#66504C
RGB	rgb(102, 80, 76)
HSL	hsl(9, 15%, 35%)
HSV	hsv(9, 25%, 40%)
CMYK	cmyk(0%, 21.6%, 25.5%, 60%)
CIE-LAB	lab(36.15, 8.51, 5.86)
CIE-LCH	lch(36.15, 10.33, 34.54°)
OKLab	oklab(45.28% 0.0263 0.0153)
OKLCH	oklch(45.28% 0.03 30.2)
XYZ	xyz(9.6528, 9.0843, 8.0811)
Luminance	0.0908 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66504C #4C6266

analogous

#664C55 #66504C #665D4C

triadic

#66504C #4C6650 #504C66

tetradic

#66504C #55664C #4C6266 #5D4C66

square

#66504C #55664C #4C6266 #5D4C66

split-complementary

#66504C #4C665D #4C5566

monochromatic

#201918 #433432 #66504C #896C66 #A68C87

Accessibility & contrast

On white

7.46

#66504C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#66504C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66504C

7.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66504C	#FFFFFF	#000000	##FFFFFF
##66504C	1.00	7.46	2.82	7.46
#FFFFFF	7.46	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#55534C

Deuteranopia (green-blind)

#5A574C

Tritanopia (blue-blind)

#6B4D4F

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #66504c;
/* rgb */ color: rgb(102, 80, 76);
/* oklch */ color: oklch(45.3% 0.030 30.2);

Tailwind

colors: {
  custom: {
    50: '#92817e',
    500: '#66504c',
    950: '#000000',
  },
}

SCSS

$custom: #66504c;
$custom-light: #92817e;
$custom-dark: #000000;

JSON

{
  "hex": "#66504c",
  "rgb": {
    "r": 102,
    "g": 80,
    "b": 76
  },
  "hsl": {
    "h": 9.231,
    "s": 14.607,
    "l": 34.902
  },
  "oklch": {
    "l": 0.45276,
    "c": 0.03044,
    "h": 30.2
  },
  "luminance": 0.09084
}

Semantic roles & 50–950 ramp

primary

#66504C

secondary

#7B8F93

accent

#ACB770

background

#F9F7F7

surface

#F1EEEE

border

#CBC9C9

text

#0D0A09

muted

#7E7C7B

Preview Lab

Preview with #66504C

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

Preview Lab → · Contrast checker → · Palette generator →