#664A4E#664A4E

#664A4E is a dark, muted red. Relative luminance 0.083; OKLCH L 44.1% C 0.039 H 9.3°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#664A4E
RGB	rgb(102, 74, 78)
HSL	hsl(351, 16%, 35%)
HSV	hsv(351, 27%, 40%)
CMYK	cmyk(0%, 27.5%, 23.5%, 60%)
CIE-LAB	lab(34.54, 12.57, 2.30)
CIE-LCH	lch(34.54, 12.77, 10.37°)
OKLab	oklab(44.05% 0.0381 0.0062)
OKLCH	oklch(44.05% 0.039 9.3)
XYZ	xyz(9.3035, 8.2728, 8.3130)
Luminance	0.0827 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#664A4E #4A6662

analogous

#664A5C #664A4E #66544A

triadic

#664A4E #4E664A #4A4E66

tetradic

#664A4E #5C664A #4A6662 #544A66

square

#664A4E #5C664A #4A6662 #544A66

split-complementary

#664A4E #4A6654 #4A5C66

monochromatic

#1F1718 #433033 #664A4E #896469 #A68489

Accessibility & contrast

On white

7.91

#664A4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#664A4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #664A4E

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##664A4E	#FFFFFF	#000000	##FFFFFF
##664A4E	1.00	7.91	2.65	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E4E4E

Deuteranopia (green-blind)

#55534D

Tritanopia (blue-blind)

#6B484B

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #664a4e;
/* rgb */ color: rgb(102, 74, 78);
/* oklch */ color: oklch(44.1% 0.039 9.3);

Tailwind

colors: {
  custom: {
    50: '#927c7f',
    500: '#664a4e',
    950: '#000000',
  },
}

SCSS

$custom: #664a4e;
$custom-light: #927c7f;
$custom-dark: #000000;

JSON

{
  "hex": "#664a4e",
  "rgb": {
    "r": 102,
    "g": 74,
    "b": 78
  },
  "hsl": {
    "h": 351.429,
    "s": 15.909,
    "l": 34.51
  },
  "oklch": {
    "l": 0.44053,
    "c": 0.03856,
    "h": 9.3
  },
  "luminance": 0.08272
}

Semantic roles & 50–950 ramp

primary

#664A4E

secondary

#789390

accent

#B9AE6F

background

#F9F7F7

surface

#F1EEEE

border

#CBC9C9

text

#0D090A

muted

#7E7B7C

Preview Lab

Preview with #664A4E

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

Preview Lab → · Contrast checker → · Palette generator →